diff --git a/import-layers/meta-virtualization/recipes-containers/docker/docker_git.bb b/import-layers/meta-virtualization/recipes-containers/docker/docker_git.bb
index 42a336e..b0fda35 100644
--- a/import-layers/meta-virtualization/recipes-containers/docker/docker_git.bb
+++ b/import-layers/meta-virtualization/recipes-containers/docker/docker_git.bb
@@ -9,35 +9,34 @@
  large-scale web deployments, database clusters, continuous deployment \
  systems, private PaaS, service-oriented architectures, etc. \
  . \
- This package contains the daemon and client. Using docker.io on non-amd64 \
- hosts is not supported at this time. Please be careful when using it \
- on anything besides amd64. \
+ This package contains the daemon and client. Using docker.io is \
+ officially supported on x86_64 and arm (32-bit) hosts. \
+ Other architectures are considered experimental. \
  . \
- Also, note that kernel version 3.8 or above is required for proper \
+ Also, note that kernel version 3.10 or above is required for proper \
  operation of the daemon process, and that any lower versions may have \
  subtle and/or glaring issues. \
  "
 
-SRCREV = "76d6bc9a9f1690e16f3721ba165364688b626de2"
+SRCREV = "7392c3b0ce0f9d3e918a321c66668c5d1ef4f689"
 SRC_URI = "\
 	git://github.com/docker/docker.git;nobranch=1 \
 	file://docker.service \
 	file://docker.init \
 	file://hi.Dockerfile \
-	file://disable_sha1sum_startup.patch \
-	file://Bump-bolt-to-v1.1.0.patch \
 	"
 
 # Apache-2.0 for docker
 LICENSE = "Apache-2.0"
-LIC_FILES_CHKSUM = "file://LICENSE;md5=cc2221abf0b96ea39dd68141b70f7937"
+LIC_FILES_CHKSUM = "file://LICENSE;md5=aadc30f9c14d876ded7bedc0afd2d3d7"
 
 S = "${WORKDIR}/git"
 
-DOCKER_VERSION = "1.9.0"
+DOCKER_VERSION = "1.12.5"
 PV = "${DOCKER_VERSION}+git${SRCREV}"
 
-DEPENDS = "go-cross \
+DEPENDS = " \
+    go-cross \
     go-cli \
     go-pty \
     go-context \
@@ -55,7 +54,10 @@
     "
 
 DEPENDS_append_class-target = "lvm2"
-RDEPENDS_${PN} = "curl aufs-util git cgroup-lite util-linux iptables"
+RDEPENDS_${PN} = "curl aufs-util git util-linux iptables \
+                  ${@bb.utils.contains('DISTRO_FEATURES','systemd','','cgroup-lite',d)} \
+                 "
+RDEPENDS_${PN} += "containerd runc"
 RRECOMMENDS_${PN} = "lxc docker-registry rt-tests"
 RRECOMMENDS_${PN} += " kernel-module-dm-thin-pool kernel-module-nf-nat"
 DOCKER_PKG="github.com/docker/docker"
@@ -63,14 +65,29 @@
 do_configure[noexec] = "1"
 
 do_compile() {
-	export GOARCH="${TARGET_ARCH}"
-	# supported amd64, 386, arm arm64
-	if [ "${TARGET_ARCH}" = "x86_64" ]; then
-		export GOARCH="amd64"
-	fi
-	if [ "${TARGET_ARCH}" = "aarch64" ]; then
-		export GOARCH="arm64"
-	fi
+	case "${TARGET_ARCH}" in
+		arm)
+			GOARCH=arm
+			case "${TUNE_PKGARCH}" in
+				cortexa*)
+					export GOARM=7
+				;;
+			esac
+		;;
+		aarch64)
+			GOARCH=arm64
+		;;
+		i586|i686)
+			GOARCH=386
+		;;
+		x86_64)
+			GOARCH=amd64
+		;;
+		*)
+			GOARCH="${TARGET_ARCH}"
+		;;
+	esac
+	export GOARCH
 
 	# Set GOPATH. See 'PACKAGERS.md'. Don't rely on
 	# docker to download its dependencies but rather
@@ -80,13 +97,14 @@
 	mkdir -p .gopath/src/"$(dirname "${DOCKER_PKG}")"
 	ln -sf ../../../.. .gopath/src/"${DOCKER_PKG}"
 	export GOPATH="${S}/.gopath:${S}/vendor:${STAGING_DIR_TARGET}/${prefix}/local/go"
+	export GOROOT="${STAGING_DIR_NATIVE}/${nonarch_libdir}/${HOST_SYS}/go"
 	cd -
 
 	# Pass the needed cflags/ldflags so that cgo
 	# can find the needed headers files and libraries
 	export CGO_ENABLED="1"
-	export CGO_CFLAGS="${BUILDSDK_CFLAGS} --sysroot=${STAGING_DIR_TARGET}"
-	export CGO_LDFLAGS="${BUILDSDK_LDFLAGS} --sysroot=${STAGING_DIR_TARGET}"
+	export CGO_CFLAGS="${CFLAGS} --sysroot=${STAGING_DIR_TARGET}"
+	export CGO_LDFLAGS="${LDFLAGS} --sysroot=${STAGING_DIR_TARGET}"
 	# in order to exclude devicemapper and btrfs - https://github.com/docker/docker/issues/14056
 	export DOCKER_BUILDTAGS='exclude_graphdriver_btrfs exclude_graphdriver_devicemapper'
 
@@ -99,28 +117,27 @@
 
 inherit systemd update-rc.d
 
-SYSTEMD_PACKAGES = "${@base_contains('DISTRO_FEATURES','systemd','${PN}','',d)}"
-SYSTEMD_SERVICE_${PN} = "${@base_contains('DISTRO_FEATURES','systemd','docker.service','',d)}"
+SYSTEMD_PACKAGES = "${@bb.utils.contains('DISTRO_FEATURES','systemd','${PN}','',d)}"
+SYSTEMD_SERVICE_${PN} = "${@bb.utils.contains('DISTRO_FEATURES','systemd','docker.service','',d)}"
 
-INITSCRIPT_PACKAGES += "${@base_contains('DISTRO_FEATURES','sysvinit','${PN}','',d)}"
-INITSCRIPT_NAME_${PN} = "${@base_contains('DISTRO_FEATURES','sysvinit','docker.init','',d)}"
+INITSCRIPT_PACKAGES += "${@bb.utils.contains('DISTRO_FEATURES','sysvinit','${PN}','',d)}"
+INITSCRIPT_NAME_${PN} = "${@bb.utils.contains('DISTRO_FEATURES','sysvinit','docker.init','',d)}"
 INITSCRIPT_PARAMS_${PN} = "${OS_DEFAULT_INITSCRIPT_PARAMS}"
 
 do_install() {
 	mkdir -p ${D}/${bindir}
-	cp ${S}/bundles/${DOCKER_VERSION}/dynbinary/docker-${DOCKER_VERSION} \
-	  ${D}/${bindir}/docker
-	cp ${S}/bundles/${DOCKER_VERSION}/dynbinary/dockerinit-${DOCKER_VERSION} \
-	  ${D}/${bindir}/dockerinit
+	cp ${S}/bundles/latest/dynbinary-client/docker ${D}/${bindir}/docker
+	cp ${S}/bundles/latest/dynbinary-daemon/dockerd ${D}/${bindir}/dockerd
+	cp ${S}/bundles/latest/dynbinary-daemon/docker-proxy ${D}/${bindir}/docker-proxy
 
-	if ${@base_contains('DISTRO_FEATURES','systemd','true','false',d)}; then
+	if ${@bb.utils.contains('DISTRO_FEATURES','systemd','true','false',d)}; then
 		install -d ${D}${systemd_unitdir}/system
 		install -m 644 ${S}/contrib/init/systemd/docker.* ${D}/${systemd_unitdir}/system
 		# replaces one copied from above with one that uses the local registry for a mirror
 		install -m 644 ${WORKDIR}/docker.service ${D}/${systemd_unitdir}/system
-        else
-            install -d ${D}${sysconfdir}/init.d
-            install -m 0755 ${WORKDIR}/docker.init ${D}${sysconfdir}/init.d/docker.init
+	else
+		install -d ${D}${sysconfdir}/init.d
+		install -m 0755 ${WORKDIR}/docker.init ${D}${sysconfdir}/init.d/docker.init
 	fi
 
 	mkdir -p ${D}/usr/share/docker/
@@ -133,15 +150,5 @@
 
 FILES_${PN} += "/lib/systemd/system/*"
 
-# DO NOT STRIP docker and dockerinit!!!
-#
-# Reason:
-# The "docker" package contains two binaries: "docker" and "dockerinit",
-# which are both written in Go. The "dockerinit" package is built first,
-# then its checksum is given to the build process compiling the "docker"
-# binary. Hence the checksum of the unstripped "dockerinit" binary is hard
-# coded into the "docker" binary. At runtime the "docker" binary invokes
-# the "dockerinit" binary, but before doing that it ensures the checksum
-# of "dockerinit" matches with the hard coded value.
-#
+# DO NOT STRIP docker
 INHIBIT_PACKAGE_STRIP = "1"
diff --git a/import-layers/meta-virtualization/recipes-containers/docker/files/Bump-bolt-to-v1.1.0.patch b/import-layers/meta-virtualization/recipes-containers/docker/files/Bump-bolt-to-v1.1.0.patch
deleted file mode 100644
index ca4ad81..0000000
--- a/import-layers/meta-virtualization/recipes-containers/docker/files/Bump-bolt-to-v1.1.0.patch
+++ /dev/null
@@ -1,1828 +0,0 @@
-From a41917c2c88bd7f694d141ac67f4a194aaa16fa1 Mon Sep 17 00:00:00 2001
-From: Qiang Huang <h.huangqiang@huawei.com>
-Date: Wed, 28 Oct 2015 08:49:45 +0800
-Subject: [PATCH] Bump bolt to v1.1.0
-
-It adds ARM64, ppc64le, s390x, solaris support, and a bunch of
-bugfixs.
-
-Signed-off-by: Qiang Huang <h.huangqiang@huawei.com>
----
- hack/vendor.sh                                     |   2 +-
- vendor/src/github.com/boltdb/bolt/.gitignore       |   1 +
- vendor/src/github.com/boltdb/bolt/README.md        | 250 +++++++++++++++++++--
- vendor/src/github.com/boltdb/bolt/batch.go         | 138 ++++++++++++
- vendor/src/github.com/boltdb/bolt/bolt_386.go      |   5 +-
- vendor/src/github.com/boltdb/bolt/bolt_amd64.go    |   3 +
- vendor/src/github.com/boltdb/bolt/bolt_arm.go      |   5 +-
- vendor/src/github.com/boltdb/bolt/bolt_arm64.go    |   9 +
- vendor/src/github.com/boltdb/bolt/bolt_ppc64le.go  |   9 +
- vendor/src/github.com/boltdb/bolt/bolt_s390x.go    |   9 +
- vendor/src/github.com/boltdb/bolt/bolt_unix.go     |  37 ++-
- .../github.com/boltdb/bolt/bolt_unix_solaris.go    | 101 +++++++++
- vendor/src/github.com/boltdb/bolt/bolt_windows.go  |  10 +-
- vendor/src/github.com/boltdb/bolt/bucket.go        |  29 ++-
- vendor/src/github.com/boltdb/bolt/cursor.go        |  12 +-
- vendor/src/github.com/boltdb/bolt/db.go            | 195 ++++++++++++----
- vendor/src/github.com/boltdb/bolt/errors.go        |   4 +
- vendor/src/github.com/boltdb/bolt/freelist.go      |  28 ++-
- vendor/src/github.com/boltdb/bolt/node.go          |  36 ++-
- vendor/src/github.com/boltdb/bolt/page.go          |  45 +++-
- vendor/src/github.com/boltdb/bolt/tx.go            |  80 +++++--
- 21 files changed, 886 insertions(+), 122 deletions(-)
- create mode 100644 vendor/src/github.com/boltdb/bolt/batch.go
- create mode 100644 vendor/src/github.com/boltdb/bolt/bolt_arm64.go
- create mode 100644 vendor/src/github.com/boltdb/bolt/bolt_ppc64le.go
- create mode 100644 vendor/src/github.com/boltdb/bolt/bolt_s390x.go
- create mode 100644 vendor/src/github.com/boltdb/bolt/bolt_unix_solaris.go
-
-diff --git a/hack/vendor.sh b/hack/vendor.sh
-index d872d4a..c28e677 100755
---- a/hack/vendor.sh
-+++ b/hack/vendor.sh
-@@ -36,7 +36,7 @@ clone git github.com/coreos/etcd v2.2.0
- fix_rewritten_imports github.com/coreos/etcd
- clone git github.com/ugorji/go 5abd4e96a45c386928ed2ca2a7ef63e2533e18ec
- clone git github.com/hashicorp/consul v0.5.2
--clone git github.com/boltdb/bolt v1.0
-+clone git github.com/boltdb/bolt v1.1.0
- 
- # get graph and distribution packages
- clone git github.com/docker/distribution 20c4b7a1805a52753dfd593ee1cc35558722a0ce # docker/1.9 branch
-diff --git a/vendor/src/github.com/boltdb/bolt/.gitignore b/vendor/src/github.com/boltdb/bolt/.gitignore
-index b2bb382..c7bd2b7 100644
---- a/vendor/src/github.com/boltdb/bolt/.gitignore
-+++ b/vendor/src/github.com/boltdb/bolt/.gitignore
-@@ -1,3 +1,4 @@
- *.prof
- *.test
-+*.swp
- /bin/
-diff --git a/vendor/src/github.com/boltdb/bolt/README.md b/vendor/src/github.com/boltdb/bolt/README.md
-index 727e977..0a33ebc 100644
---- a/vendor/src/github.com/boltdb/bolt/README.md
-+++ b/vendor/src/github.com/boltdb/bolt/README.md
-@@ -16,7 +16,7 @@ and setting values. That's it.
- 
- ## Project Status
- 
--Bolt is stable and the API is fixed. Full unit test coverage and randomized 
-+Bolt is stable and the API is fixed. Full unit test coverage and randomized
- black box testing are used to ensure database consistency and thread safety.
- Bolt is currently in high-load production environments serving databases as
- large as 1TB. Many companies such as Shopify and Heroku use Bolt-backed
-@@ -87,6 +87,11 @@ are not thread safe. To work with data in multiple goroutines you must start
- a transaction for each one or use locking to ensure only one goroutine accesses
- a transaction at a time. Creating transaction from the `DB` is thread safe.
- 
-+Read-only transactions and read-write transactions should not depend on one
-+another and generally shouldn't be opened simultaneously in the same goroutine.
-+This can cause a deadlock as the read-write transaction needs to periodically
-+re-map the data file but it cannot do so while a read-only transaction is open.
-+
- 
- #### Read-write transactions
- 
-@@ -120,12 +125,88 @@ err := db.View(func(tx *bolt.Tx) error {
- })
- ```
- 
--You also get a consistent view of the database within this closure, however, 
-+You also get a consistent view of the database within this closure, however,
- no mutating operations are allowed within a read-only transaction. You can only
- retrieve buckets, retrieve values, and copy the database within a read-only
- transaction.
- 
- 
-+#### Batch read-write transactions
-+
-+Each `DB.Update()` waits for disk to commit the writes. This overhead
-+can be minimized by combining multiple updates with the `DB.Batch()`
-+function:
-+
-+```go
-+err := db.Batch(func(tx *bolt.Tx) error {
-+	...
-+	return nil
-+})
-+```
-+
-+Concurrent Batch calls are opportunistically combined into larger
-+transactions. Batch is only useful when there are multiple goroutines
-+calling it.
-+
-+The trade-off is that `Batch` can call the given
-+function multiple times, if parts of the transaction fail. The
-+function must be idempotent and side effects must take effect only
-+after a successful return from `DB.Batch()`.
-+
-+For example: don't display messages from inside the function, instead
-+set variables in the enclosing scope:
-+
-+```go
-+var id uint64
-+err := db.Batch(func(tx *bolt.Tx) error {
-+	// Find last key in bucket, decode as bigendian uint64, increment
-+	// by one, encode back to []byte, and add new key.
-+	...
-+	id = newValue
-+	return nil
-+})
-+if err != nil {
-+	return ...
-+}
-+fmt.Println("Allocated ID %d", id)
-+```
-+
-+
-+#### Managing transactions manually
-+
-+The `DB.View()` and `DB.Update()` functions are wrappers around the `DB.Begin()`
-+function. These helper functions will start the transaction, execute a function,
-+and then safely close your transaction if an error is returned. This is the
-+recommended way to use Bolt transactions.
-+
-+However, sometimes you may want to manually start and end your transactions.
-+You can use the `Tx.Begin()` function directly but _please_ be sure to close the
-+transaction.
-+
-+```go
-+// Start a writable transaction.
-+tx, err := db.Begin(true)
-+if err != nil {
-+    return err
-+}
-+defer tx.Rollback()
-+
-+// Use the transaction...
-+_, err := tx.CreateBucket([]byte("MyBucket"))
-+if err != nil {
-+    return err
-+}
-+
-+// Commit the transaction and check for error.
-+if err := tx.Commit(); err != nil {
-+    return err
-+}
-+```
-+
-+The first argument to `DB.Begin()` is a boolean stating if the transaction
-+should be writable.
-+
-+
- ### Using buckets
- 
- Buckets are collections of key/value pairs within the database. All keys in a
-@@ -175,13 +256,61 @@ db.View(func(tx *bolt.Tx) error {
- ```
- 
- The `Get()` function does not return an error because its operation is
--guarenteed to work (unless there is some kind of system failure). If the key
-+guaranteed to work (unless there is some kind of system failure). If the key
- exists then it will return its byte slice value. If it doesn't exist then it
- will return `nil`. It's important to note that you can have a zero-length value
- set to a key which is different than the key not existing.
- 
- Use the `Bucket.Delete()` function to delete a key from the bucket.
- 
-+Please note that values returned from `Get()` are only valid while the
-+transaction is open. If you need to use a value outside of the transaction
-+then you must use `copy()` to copy it to another byte slice.
-+
-+
-+### Autoincrementing integer for the bucket
-+By using the NextSequence() function, you can let Bolt determine a sequence
-+which can be used as the unique identifier for your key/value pairs. See the
-+example below.
-+
-+```go
-+// CreateUser saves u to the store. The new user ID is set on u once the data is persisted.
-+func (s *Store) CreateUser(u *User) error {
-+    return s.db.Update(func(tx *bolt.Tx) error {
-+        // Retrieve the users bucket.
-+        // This should be created when the DB is first opened.
-+        b := tx.Bucket([]byte("users"))
-+
-+        // Generate ID for the user.
-+        // This returns an error only if the Tx is closed or not writeable.
-+        // That can't happen in an Update() call so I ignore the error check.
-+        id, _ = b.NextSequence()
-+        u.ID = int(id)
-+
-+        // Marshal user data into bytes.
-+        buf, err := json.Marshal(u)
-+        if err != nil {
-+            return err
-+        }
-+
-+        // Persist bytes to users bucket.
-+        return b.Put(itob(u.ID), buf)
-+    })
-+}
-+
-+// itob returns an 8-byte big endian representation of v.
-+func itob(v int) []byte {
-+    b := make([]byte, 8)
-+    binary.BigEndian.PutUint64(b, uint64(v))
-+    return b
-+}
-+
-+type User struct {
-+    ID int
-+    ...
-+}
-+
-+```
- 
- ### Iterating over keys
- 
-@@ -254,7 +383,7 @@ db.View(func(tx *bolt.Tx) error {
- 	max := []byte("2000-01-01T00:00:00Z")
- 
- 	// Iterate over the 90's.
--	for k, v := c.Seek(min); k != nil && bytes.Compare(k, max) != -1; k, v = c.Next() {
-+	for k, v := c.Seek(min); k != nil && bytes.Compare(k, max) <= 0; k, v = c.Next() {
- 		fmt.Printf("%s: %s\n", k, v)
- 	}
- 
-@@ -294,7 +423,7 @@ func (*Bucket) DeleteBucket(key []byte) error
- 
- ### Database backups
- 
--Bolt is a single file so it's easy to backup. You can use the `Tx.Copy()`
-+Bolt is a single file so it's easy to backup. You can use the `Tx.WriteTo()`
- function to write a consistent view of the database to a writer. If you call
- this from a read-only transaction, it will perform a hot backup and not block
- your other database reads and writes. It will also use `O_DIRECT` when available
-@@ -305,11 +434,12 @@ do database backups:
- 
- ```go
- func BackupHandleFunc(w http.ResponseWriter, req *http.Request) {
--	err := db.View(func(tx bolt.Tx) error {
-+	err := db.View(func(tx *bolt.Tx) error {
- 		w.Header().Set("Content-Type", "application/octet-stream")
- 		w.Header().Set("Content-Disposition", `attachment; filename="my.db"`)
- 		w.Header().Set("Content-Length", strconv.Itoa(int(tx.Size())))
--		return tx.Copy(w)
-+		_, err := tx.WriteTo(w)
-+		return err
- 	})
- 	if err != nil {
- 		http.Error(w, err.Error(), http.StatusInternalServerError)
-@@ -351,14 +481,13 @@ go func() {
- 		// Grab the current stats and diff them.
- 		stats := db.Stats()
- 		diff := stats.Sub(&prev)
--		
-+
- 		// Encode stats to JSON and print to STDERR.
- 		json.NewEncoder(os.Stderr).Encode(diff)
- 
- 		// Save stats for the next loop.
- 		prev = stats
- 	}
--}
- }()
- ```
- 
-@@ -366,25 +495,83 @@ It's also useful to pipe these stats to a service such as statsd for monitoring
- or to provide an HTTP endpoint that will perform a fixed-length sample.
- 
- 
-+### Read-Only Mode
-+
-+Sometimes it is useful to create a shared, read-only Bolt database. To this,
-+set the `Options.ReadOnly` flag when opening your database. Read-only mode
-+uses a shared lock to allow multiple processes to read from the database but
-+it will block any processes from opening the database in read-write mode.
-+
-+```go
-+db, err := bolt.Open("my.db", 0666, &bolt.Options{ReadOnly: true})
-+if err != nil {
-+	log.Fatal(err)
-+}
-+```
-+
-+
- ## Resources
- 
- For more information on getting started with Bolt, check out the following articles:
- 
- * [Intro to BoltDB: Painless Performant Persistence](http://npf.io/2014/07/intro-to-boltdb-painless-performant-persistence/) by [Nate Finch](https://github.com/natefinch).
-+* [Bolt -- an embedded key/value database for Go](https://www.progville.com/go/bolt-embedded-db-golang/) by Progville
-+
-+
-+## Comparison with other databases
-+
-+### Postgres, MySQL, & other relational databases
-+
-+Relational databases structure data into rows and are only accessible through
-+the use of SQL. This approach provides flexibility in how you store and query
-+your data but also incurs overhead in parsing and planning SQL statements. Bolt
-+accesses all data by a byte slice key. This makes Bolt fast to read and write
-+data by key but provides no built-in support for joining values together.
-+
-+Most relational databases (with the exception of SQLite) are standalone servers
-+that run separately from your application. This gives your systems
-+flexibility to connect multiple application servers to a single database
-+server but also adds overhead in serializing and transporting data over the
-+network. Bolt runs as a library included in your application so all data access
-+has to go through your application's process. This brings data closer to your
-+application but limits multi-process access to the data.
-+
-+
-+### LevelDB, RocksDB
- 
-+LevelDB and its derivatives (RocksDB, HyperLevelDB) are similar to Bolt in that
-+they are libraries bundled into the application, however, their underlying
-+structure is a log-structured merge-tree (LSM tree). An LSM tree optimizes
-+random writes by using a write ahead log and multi-tiered, sorted files called
-+SSTables. Bolt uses a B+tree internally and only a single file. Both approaches
-+have trade offs.
- 
-+If you require a high random write throughput (>10,000 w/sec) or you need to use
-+spinning disks then LevelDB could be a good choice. If your application is
-+read-heavy or does a lot of range scans then Bolt could be a good choice.
- 
--## Comparing Bolt to LMDB
-+One other important consideration is that LevelDB does not have transactions.
-+It supports batch writing of key/values pairs and it supports read snapshots
-+but it will not give you the ability to do a compare-and-swap operation safely.
-+Bolt supports fully serializable ACID transactions.
-+
-+
-+### LMDB
- 
- Bolt was originally a port of LMDB so it is architecturally similar. Both use
--a B+tree, have ACID semanetics with fully serializable transactions, and support
-+a B+tree, have ACID semantics with fully serializable transactions, and support
- lock-free MVCC using a single writer and multiple readers.
- 
- The two projects have somewhat diverged. LMDB heavily focuses on raw performance
- while Bolt has focused on simplicity and ease of use. For example, LMDB allows
--several unsafe actions such as direct writes and append writes for the sake of
--performance. Bolt opts to disallow actions which can leave the database in a 
--corrupted state. The only exception to this in Bolt is `DB.NoSync`.
-+several unsafe actions such as direct writes for the sake of performance. Bolt
-+opts to disallow actions which can leave the database in a corrupted state. The
-+only exception to this in Bolt is `DB.NoSync`.
-+
-+There are also a few differences in API. LMDB requires a maximum mmap size when
-+opening an `mdb_env` whereas Bolt will handle incremental mmap resizing
-+automatically. LMDB overloads the getter and setter functions with multiple
-+flags whereas Bolt splits these specialized cases into their own functions.
- 
- 
- ## Caveats & Limitations
-@@ -425,14 +612,33 @@ Here are a few things to note when evaluating and using Bolt:
-   can in memory and will release memory as needed to other processes. This means
-   that Bolt can show very high memory usage when working with large databases.
-   However, this is expected and the OS will release memory as needed. Bolt can
--  handle databases much larger than the available physical RAM.
-+  handle databases much larger than the available physical RAM, provided its
-+  memory-map fits in the process virtual address space. It may be problematic
-+  on 32-bits systems.
-+
-+* The data structures in the Bolt database are memory mapped so the data file
-+  will be endian specific. This means that you cannot copy a Bolt file from a
-+  little endian machine to a big endian machine and have it work. For most 
-+  users this is not a concern since most modern CPUs are little endian.
-+
-+* Because of the way pages are laid out on disk, Bolt cannot truncate data files
-+  and return free pages back to the disk. Instead, Bolt maintains a free list
-+  of unused pages within its data file. These free pages can be reused by later
-+  transactions. This works well for many use cases as databases generally tend
-+  to grow. However, it's important to note that deleting large chunks of data
-+  will not allow you to reclaim that space on disk.
-+
-+  For more information on page allocation, [see this comment][page-allocation].
-+
-+[page-allocation]: https://github.com/boltdb/bolt/issues/308#issuecomment-74811638
- 
- 
- ## Other Projects Using Bolt
- 
- Below is a list of public, open source projects that use Bolt:
- 
--* [Bazil](https://github.com/bazillion/bazil) - A file system that lets your data reside where it is most convenient for it to reside.
-+* [Operation Go: A Routine Mission](http://gocode.io) - An online programming game for Golang using Bolt for user accounts and a leaderboard.
-+* [Bazil](https://bazil.org/) - A file system that lets your data reside where it is most convenient for it to reside.
- * [DVID](https://github.com/janelia-flyem/dvid) - Added Bolt as optional storage engine and testing it against Basho-tuned leveldb.
- * [Skybox Analytics](https://github.com/skybox/skybox) - A standalone funnel analysis tool for web analytics.
- * [Scuttlebutt](https://github.com/benbjohnson/scuttlebutt) - Uses Bolt to store and process all Twitter mentions of GitHub projects.
-@@ -450,6 +656,16 @@ Below is a list of public, open source projects that use Bolt:
- * [bleve](http://www.blevesearch.com/) - A pure Go search engine similar to ElasticSearch that uses Bolt as the default storage backend.
- * [tentacool](https://github.com/optiflows/tentacool) - REST api server to manage system stuff (IP, DNS, Gateway...) on a linux server.
- * [SkyDB](https://github.com/skydb/sky) - Behavioral analytics database.
-+* [Seaweed File System](https://github.com/chrislusf/weed-fs) - Highly scalable distributed key~file system with O(1) disk read.
-+* [InfluxDB](http://influxdb.com) - Scalable datastore for metrics, events, and real-time analytics.
-+* [Freehold](http://tshannon.bitbucket.org/freehold/) - An open, secure, and lightweight platform for your files and data.
-+* [Prometheus Annotation Server](https://github.com/oliver006/prom_annotation_server) - Annotation server for PromDash & Prometheus service monitoring system.
-+* [Consul](https://github.com/hashicorp/consul) - Consul is service discovery and configuration made easy. Distributed, highly available, and datacenter-aware.
-+* [Kala](https://github.com/ajvb/kala) - Kala is a modern job scheduler optimized to run on a single node. It is persistent, JSON over HTTP API, ISO 8601 duration notation, and dependent jobs.
-+* [drive](https://github.com/odeke-em/drive) - drive is an unofficial Google Drive command line client for \*NIX operating systems.
-+* [stow](https://github.com/djherbis/stow) -  a persistence manager for objects
-+  backed by boltdb.
-+* [buckets](https://github.com/joyrexus/buckets) - a bolt wrapper streamlining
-+  simple tx and key scans.
- 
- If you are using Bolt in a project please send a pull request to add it to the list.
--
-diff --git a/vendor/src/github.com/boltdb/bolt/batch.go b/vendor/src/github.com/boltdb/bolt/batch.go
-new file mode 100644
-index 0000000..84acae6
---- /dev/null
-+++ b/vendor/src/github.com/boltdb/bolt/batch.go
-@@ -0,0 +1,138 @@
-+package bolt
-+
-+import (
-+	"errors"
-+	"fmt"
-+	"sync"
-+	"time"
-+)
-+
-+// Batch calls fn as part of a batch. It behaves similar to Update,
-+// except:
-+//
-+// 1. concurrent Batch calls can be combined into a single Bolt
-+// transaction.
-+//
-+// 2. the function passed to Batch may be called multiple times,
-+// regardless of whether it returns error or not.
-+//
-+// This means that Batch function side effects must be idempotent and
-+// take permanent effect only after a successful return is seen in
-+// caller.
-+//
-+// The maximum batch size and delay can be adjusted with DB.MaxBatchSize
-+// and DB.MaxBatchDelay, respectively.
-+//
-+// Batch is only useful when there are multiple goroutines calling it.
-+func (db *DB) Batch(fn func(*Tx) error) error {
-+	errCh := make(chan error, 1)
-+
-+	db.batchMu.Lock()
-+	if (db.batch == nil) || (db.batch != nil && len(db.batch.calls) >= db.MaxBatchSize) {
-+		// There is no existing batch, or the existing batch is full; start a new one.
-+		db.batch = &batch{
-+			db: db,
-+		}
-+		db.batch.timer = time.AfterFunc(db.MaxBatchDelay, db.batch.trigger)
-+	}
-+	db.batch.calls = append(db.batch.calls, call{fn: fn, err: errCh})
-+	if len(db.batch.calls) >= db.MaxBatchSize {
-+		// wake up batch, it's ready to run
-+		go db.batch.trigger()
-+	}
-+	db.batchMu.Unlock()
-+
-+	err := <-errCh
-+	if err == trySolo {
-+		err = db.Update(fn)
-+	}
-+	return err
-+}
-+
-+type call struct {
-+	fn  func(*Tx) error
-+	err chan<- error
-+}
-+
-+type batch struct {
-+	db    *DB
-+	timer *time.Timer
-+	start sync.Once
-+	calls []call
-+}
-+
-+// trigger runs the batch if it hasn't already been run.
-+func (b *batch) trigger() {
-+	b.start.Do(b.run)
-+}
-+
-+// run performs the transactions in the batch and communicates results
-+// back to DB.Batch.
-+func (b *batch) run() {
-+	b.db.batchMu.Lock()
-+	b.timer.Stop()
-+	// Make sure no new work is added to this batch, but don't break
-+	// other batches.
-+	if b.db.batch == b {
-+		b.db.batch = nil
-+	}
-+	b.db.batchMu.Unlock()
-+
-+retry:
-+	for len(b.calls) > 0 {
-+		var failIdx = -1
-+		err := b.db.Update(func(tx *Tx) error {
-+			for i, c := range b.calls {
-+				if err := safelyCall(c.fn, tx); err != nil {
-+					failIdx = i
-+					return err
-+				}
-+			}
-+			return nil
-+		})
-+
-+		if failIdx >= 0 {
-+			// take the failing transaction out of the batch. it's
-+			// safe to shorten b.calls here because db.batch no longer
-+			// points to us, and we hold the mutex anyway.
-+			c := b.calls[failIdx]
-+			b.calls[failIdx], b.calls = b.calls[len(b.calls)-1], b.calls[:len(b.calls)-1]
-+			// tell the submitter re-run it solo, continue with the rest of the batch
-+			c.err <- trySolo
-+			continue retry
-+		}
-+
-+		// pass success, or bolt internal errors, to all callers
-+		for _, c := range b.calls {
-+			if c.err != nil {
-+				c.err <- err
-+			}
-+		}
-+		break retry
-+	}
-+}
-+
-+// trySolo is a special sentinel error value used for signaling that a
-+// transaction function should be re-run. It should never be seen by
-+// callers.
-+var trySolo = errors.New("batch function returned an error and should be re-run solo")
-+
-+type panicked struct {
-+	reason interface{}
-+}
-+
-+func (p panicked) Error() string {
-+	if err, ok := p.reason.(error); ok {
-+		return err.Error()
-+	}
-+	return fmt.Sprintf("panic: %v", p.reason)
-+}
-+
-+func safelyCall(fn func(*Tx) error, tx *Tx) (err error) {
-+	defer func() {
-+		if p := recover(); p != nil {
-+			err = panicked{p}
-+		}
-+	}()
-+	return fn(tx)
-+}
-diff --git a/vendor/src/github.com/boltdb/bolt/bolt_386.go b/vendor/src/github.com/boltdb/bolt/bolt_386.go
-index 856f401..e659bfb 100644
---- a/vendor/src/github.com/boltdb/bolt/bolt_386.go
-+++ b/vendor/src/github.com/boltdb/bolt/bolt_386.go
-@@ -1,4 +1,7 @@
- package bolt
- 
- // maxMapSize represents the largest mmap size supported by Bolt.
--const maxMapSize = 0xFFFFFFF // 256MB
-+const maxMapSize = 0x7FFFFFFF // 2GB
-+
-+// maxAllocSize is the size used when creating array pointers.
-+const maxAllocSize = 0xFFFFFFF
-diff --git a/vendor/src/github.com/boltdb/bolt/bolt_amd64.go b/vendor/src/github.com/boltdb/bolt/bolt_amd64.go
-index 4262932..cca6b7e 100644
---- a/vendor/src/github.com/boltdb/bolt/bolt_amd64.go
-+++ b/vendor/src/github.com/boltdb/bolt/bolt_amd64.go
-@@ -2,3 +2,6 @@ package bolt
- 
- // maxMapSize represents the largest mmap size supported by Bolt.
- const maxMapSize = 0xFFFFFFFFFFFF // 256TB
-+
-+// maxAllocSize is the size used when creating array pointers.
-+const maxAllocSize = 0x7FFFFFFF
-diff --git a/vendor/src/github.com/boltdb/bolt/bolt_arm.go b/vendor/src/github.com/boltdb/bolt/bolt_arm.go
-index 856f401..e659bfb 100644
---- a/vendor/src/github.com/boltdb/bolt/bolt_arm.go
-+++ b/vendor/src/github.com/boltdb/bolt/bolt_arm.go
-@@ -1,4 +1,7 @@
- package bolt
- 
- // maxMapSize represents the largest mmap size supported by Bolt.
--const maxMapSize = 0xFFFFFFF // 256MB
-+const maxMapSize = 0x7FFFFFFF // 2GB
-+
-+// maxAllocSize is the size used when creating array pointers.
-+const maxAllocSize = 0xFFFFFFF
-diff --git a/vendor/src/github.com/boltdb/bolt/bolt_arm64.go b/vendor/src/github.com/boltdb/bolt/bolt_arm64.go
-new file mode 100644
-index 0000000..6d23093
---- /dev/null
-+++ b/vendor/src/github.com/boltdb/bolt/bolt_arm64.go
-@@ -0,0 +1,9 @@
-+// +build arm64
-+
-+package bolt
-+
-+// maxMapSize represents the largest mmap size supported by Bolt.
-+const maxMapSize = 0xFFFFFFFFFFFF // 256TB
-+
-+// maxAllocSize is the size used when creating array pointers.
-+const maxAllocSize = 0x7FFFFFFF
-diff --git a/vendor/src/github.com/boltdb/bolt/bolt_ppc64le.go b/vendor/src/github.com/boltdb/bolt/bolt_ppc64le.go
-new file mode 100644
-index 0000000..8351e12
---- /dev/null
-+++ b/vendor/src/github.com/boltdb/bolt/bolt_ppc64le.go
-@@ -0,0 +1,9 @@
-+// +build ppc64le
-+
-+package bolt
-+
-+// maxMapSize represents the largest mmap size supported by Bolt.
-+const maxMapSize = 0xFFFFFFFFFFFF // 256TB
-+
-+// maxAllocSize is the size used when creating array pointers.
-+const maxAllocSize = 0x7FFFFFFF
-diff --git a/vendor/src/github.com/boltdb/bolt/bolt_s390x.go b/vendor/src/github.com/boltdb/bolt/bolt_s390x.go
-new file mode 100644
-index 0000000..f4dd26b
---- /dev/null
-+++ b/vendor/src/github.com/boltdb/bolt/bolt_s390x.go
-@@ -0,0 +1,9 @@
-+// +build s390x
-+
-+package bolt
-+
-+// maxMapSize represents the largest mmap size supported by Bolt.
-+const maxMapSize = 0xFFFFFFFFFFFF // 256TB
-+
-+// maxAllocSize is the size used when creating array pointers.
-+const maxAllocSize = 0x7FFFFFFF
-diff --git a/vendor/src/github.com/boltdb/bolt/bolt_unix.go b/vendor/src/github.com/boltdb/bolt/bolt_unix.go
-index 95647a7..6eef6b2 100644
---- a/vendor/src/github.com/boltdb/bolt/bolt_unix.go
-+++ b/vendor/src/github.com/boltdb/bolt/bolt_unix.go
-@@ -1,8 +1,9 @@
--// +build !windows,!plan9
-+// +build !windows,!plan9,!solaris
- 
- package bolt
- 
- import (
-+	"fmt"
- 	"os"
- 	"syscall"
- 	"time"
-@@ -10,7 +11,7 @@ import (
- )
- 
- // flock acquires an advisory lock on a file descriptor.
--func flock(f *os.File, timeout time.Duration) error {
-+func flock(f *os.File, exclusive bool, timeout time.Duration) error {
- 	var t time.Time
- 	for {
- 		// If we're beyond our timeout then return an error.
-@@ -20,9 +21,13 @@ func flock(f *os.File, timeout time.Duration) error {
- 		} else if timeout > 0 && time.Since(t) > timeout {
- 			return ErrTimeout
- 		}
-+		flag := syscall.LOCK_SH
-+		if exclusive {
-+			flag = syscall.LOCK_EX
-+		}
- 
- 		// Otherwise attempt to obtain an exclusive lock.
--		err := syscall.Flock(int(f.Fd()), syscall.LOCK_EX|syscall.LOCK_NB)
-+		err := syscall.Flock(int(f.Fd()), flag|syscall.LOCK_NB)
- 		if err == nil {
- 			return nil
- 		} else if err != syscall.EWOULDBLOCK {
-@@ -41,11 +46,28 @@ func funlock(f *os.File) error {
- 
- // mmap memory maps a DB's data file.
- func mmap(db *DB, sz int) error {
-+	// Truncate and fsync to ensure file size metadata is flushed.
-+	// https://github.com/boltdb/bolt/issues/284
-+	if !db.NoGrowSync && !db.readOnly {
-+		if err := db.file.Truncate(int64(sz)); err != nil {
-+			return fmt.Errorf("file resize error: %s", err)
-+		}
-+		if err := db.file.Sync(); err != nil {
-+			return fmt.Errorf("file sync error: %s", err)
-+		}
-+	}
-+
-+	// Map the data file to memory.
- 	b, err := syscall.Mmap(int(db.file.Fd()), 0, sz, syscall.PROT_READ, syscall.MAP_SHARED)
- 	if err != nil {
- 		return err
- 	}
- 
-+	// Advise the kernel that the mmap is accessed randomly.
-+	if err := madvise(b, syscall.MADV_RANDOM); err != nil {
-+		return fmt.Errorf("madvise: %s", err)
-+	}
-+
- 	// Save the original byte slice and convert to a byte array pointer.
- 	db.dataref = b
- 	db.data = (*[maxMapSize]byte)(unsafe.Pointer(&b[0]))
-@@ -67,3 +89,12 @@ func munmap(db *DB) error {
- 	db.datasz = 0
- 	return err
- }
-+
-+// NOTE: This function is copied from stdlib because it is not available on darwin.
-+func madvise(b []byte, advice int) (err error) {
-+	_, _, e1 := syscall.Syscall(syscall.SYS_MADVISE, uintptr(unsafe.Pointer(&b[0])), uintptr(len(b)), uintptr(advice))
-+	if e1 != 0 {
-+		err = e1
-+	}
-+	return
-+}
-diff --git a/vendor/src/github.com/boltdb/bolt/bolt_unix_solaris.go b/vendor/src/github.com/boltdb/bolt/bolt_unix_solaris.go
-new file mode 100644
-index 0000000..f480ee7
---- /dev/null
-+++ b/vendor/src/github.com/boltdb/bolt/bolt_unix_solaris.go
-@@ -0,0 +1,101 @@
-+
-+package bolt
-+
-+import (
-+	"fmt"
-+	"os"
-+	"syscall"
-+	"time"
-+	"unsafe"
-+	"golang.org/x/sys/unix"
-+)
-+
-+// flock acquires an advisory lock on a file descriptor.
-+func flock(f *os.File, exclusive bool, timeout time.Duration) error {
-+	var t time.Time
-+	for {
-+		// If we're beyond our timeout then return an error.
-+		// This can only occur after we've attempted a flock once.
-+		if t.IsZero() {
-+			t = time.Now()
-+		} else if timeout > 0 && time.Since(t) > timeout {
-+			return ErrTimeout
-+		}
-+		var lock syscall.Flock_t
-+		lock.Start = 0
-+		lock.Len = 0
-+		lock.Pid = 0
-+		lock.Whence = 0
-+		lock.Pid = 0
-+		if exclusive {
-+			lock.Type = syscall.F_WRLCK
-+		} else {
-+			lock.Type = syscall.F_RDLCK
-+		}
-+		err := syscall.FcntlFlock(f.Fd(), syscall.F_SETLK, &lock)
-+		if err == nil {
-+			return nil
-+		} else if err != syscall.EAGAIN {
-+			return err
-+		}
-+
-+		// Wait for a bit and try again.
-+		time.Sleep(50 * time.Millisecond)
-+	}
-+}
-+
-+// funlock releases an advisory lock on a file descriptor.
-+func funlock(f *os.File) error {
-+	var lock syscall.Flock_t
-+	lock.Start = 0
-+	lock.Len = 0
-+	lock.Type = syscall.F_UNLCK
-+	lock.Whence = 0
-+	return syscall.FcntlFlock(uintptr(f.Fd()), syscall.F_SETLK, &lock)
-+}
-+
-+// mmap memory maps a DB's data file.
-+func mmap(db *DB, sz int) error {
-+	// Truncate and fsync to ensure file size metadata is flushed.
-+	// https://github.com/boltdb/bolt/issues/284
-+	if !db.NoGrowSync && !db.readOnly {
-+		if err := db.file.Truncate(int64(sz)); err != nil {
-+			return fmt.Errorf("file resize error: %s", err)
-+		}
-+		if err := db.file.Sync(); err != nil {
-+			return fmt.Errorf("file sync error: %s", err)
-+		}
-+	}
-+
-+	// Map the data file to memory.
-+	b, err := unix.Mmap(int(db.file.Fd()), 0, sz, syscall.PROT_READ, syscall.MAP_SHARED)
-+	if err != nil {
-+		return err
-+	}
-+
-+	// Advise the kernel that the mmap is accessed randomly.
-+	if err := unix.Madvise(b, syscall.MADV_RANDOM); err != nil {
-+		return fmt.Errorf("madvise: %s", err)
-+	}
-+
-+	// Save the original byte slice and convert to a byte array pointer.
-+	db.dataref = b
-+	db.data = (*[maxMapSize]byte)(unsafe.Pointer(&b[0]))
-+	db.datasz = sz
-+	return nil
-+}
-+
-+// munmap unmaps a DB's data file from memory.
-+func munmap(db *DB) error {
-+	// Ignore the unmap if we have no mapped data.
-+	if db.dataref == nil {
-+		return nil
-+	}
-+
-+	// Unmap using the original byte slice.
-+	err := unix.Munmap(db.dataref)
-+	db.dataref = nil
-+	db.data = nil
-+	db.datasz = 0
-+	return err
-+}
-diff --git a/vendor/src/github.com/boltdb/bolt/bolt_windows.go b/vendor/src/github.com/boltdb/bolt/bolt_windows.go
-index c8539d4..8b782be 100644
---- a/vendor/src/github.com/boltdb/bolt/bolt_windows.go
-+++ b/vendor/src/github.com/boltdb/bolt/bolt_windows.go
-@@ -16,7 +16,7 @@ func fdatasync(db *DB) error {
- }
- 
- // flock acquires an advisory lock on a file descriptor.
--func flock(f *os.File, _ time.Duration) error {
-+func flock(f *os.File, _ bool, _ time.Duration) error {
- 	return nil
- }
- 
-@@ -28,9 +28,11 @@ func funlock(f *os.File) error {
- // mmap memory maps a DB's data file.
- // Based on: https://github.com/edsrzf/mmap-go
- func mmap(db *DB, sz int) error {
--	// Truncate the database to the size of the mmap.
--	if err := db.file.Truncate(int64(sz)); err != nil {
--		return fmt.Errorf("truncate: %s", err)
-+	if !db.readOnly {
-+		// Truncate the database to the size of the mmap.
-+		if err := db.file.Truncate(int64(sz)); err != nil {
-+			return fmt.Errorf("truncate: %s", err)
-+		}
- 	}
- 
- 	// Open a file mapping handle.
-diff --git a/vendor/src/github.com/boltdb/bolt/bucket.go b/vendor/src/github.com/boltdb/bolt/bucket.go
-index 2630800..2925288 100644
---- a/vendor/src/github.com/boltdb/bolt/bucket.go
-+++ b/vendor/src/github.com/boltdb/bolt/bucket.go
-@@ -99,6 +99,7 @@ func (b *Bucket) Cursor() *Cursor {
- 
- // Bucket retrieves a nested bucket by name.
- // Returns nil if the bucket does not exist.
-+// The bucket instance is only valid for the lifetime of the transaction.
- func (b *Bucket) Bucket(name []byte) *Bucket {
- 	if b.buckets != nil {
- 		if child := b.buckets[string(name)]; child != nil {
-@@ -148,6 +149,7 @@ func (b *Bucket) openBucket(value []byte) *Bucket {
- 
- // CreateBucket creates a new bucket at the given key and returns the new bucket.
- // Returns an error if the key already exists, if the bucket name is blank, or if the bucket name is too long.
-+// The bucket instance is only valid for the lifetime of the transaction.
- func (b *Bucket) CreateBucket(key []byte) (*Bucket, error) {
- 	if b.tx.db == nil {
- 		return nil, ErrTxClosed
-@@ -192,6 +194,7 @@ func (b *Bucket) CreateBucket(key []byte) (*Bucket, error) {
- 
- // CreateBucketIfNotExists creates a new bucket if it doesn't already exist and returns a reference to it.
- // Returns an error if the bucket name is blank, or if the bucket name is too long.
-+// The bucket instance is only valid for the lifetime of the transaction.
- func (b *Bucket) CreateBucketIfNotExists(key []byte) (*Bucket, error) {
- 	child, err := b.CreateBucket(key)
- 	if err == ErrBucketExists {
-@@ -252,6 +255,7 @@ func (b *Bucket) DeleteBucket(key []byte) error {
- 
- // Get retrieves the value for a key in the bucket.
- // Returns a nil value if the key does not exist or if the key is a nested bucket.
-+// The returned value is only valid for the life of the transaction.
- func (b *Bucket) Get(key []byte) []byte {
- 	k, v, flags := b.Cursor().seek(key)
- 
-@@ -332,6 +336,12 @@ func (b *Bucket) NextSequence() (uint64, error) {
- 		return 0, ErrTxNotWritable
- 	}
- 
-+	// Materialize the root node if it hasn't been already so that the
-+	// bucket will be saved during commit.
-+	if b.rootNode == nil {
-+		_ = b.node(b.root, nil)
-+	}
-+
- 	// Increment and return the sequence.
- 	b.bucket.sequence++
- 	return b.bucket.sequence, nil
-@@ -339,7 +349,8 @@ func (b *Bucket) NextSequence() (uint64, error) {
- 
- // ForEach executes a function for each key/value pair in a bucket.
- // If the provided function returns an error then the iteration is stopped and
--// the error is returned to the caller.
-+// the error is returned to the caller. The provided function must not modify
-+// the bucket; this will result in undefined behavior.
- func (b *Bucket) ForEach(fn func(k, v []byte) error) error {
- 	if b.tx.db == nil {
- 		return ErrTxClosed
-@@ -511,8 +522,12 @@ func (b *Bucket) spill() error {
- 		// Update parent node.
- 		var c = b.Cursor()
- 		k, _, flags := c.seek([]byte(name))
--		_assert(bytes.Equal([]byte(name), k), "misplaced bucket header: %x -> %x", []byte(name), k)
--		_assert(flags&bucketLeafFlag != 0, "unexpected bucket header flag: %x", flags)
-+		if !bytes.Equal([]byte(name), k) {
-+			panic(fmt.Sprintf("misplaced bucket header: %x -> %x", []byte(name), k))
-+		}
-+		if flags&bucketLeafFlag == 0 {
-+			panic(fmt.Sprintf("unexpected bucket header flag: %x", flags))
-+		}
- 		c.node().put([]byte(name), []byte(name), value, 0, bucketLeafFlag)
- 	}
- 
-@@ -528,7 +543,9 @@ func (b *Bucket) spill() error {
- 	b.rootNode = b.rootNode.root()
- 
- 	// Update the root node for this bucket.
--	_assert(b.rootNode.pgid < b.tx.meta.pgid, "pgid (%d) above high water mark (%d)", b.rootNode.pgid, b.tx.meta.pgid)
-+	if b.rootNode.pgid >= b.tx.meta.pgid {
-+		panic(fmt.Sprintf("pgid (%d) above high water mark (%d)", b.rootNode.pgid, b.tx.meta.pgid))
-+	}
- 	b.root = b.rootNode.pgid
- 
- 	return nil
-@@ -659,7 +676,9 @@ func (b *Bucket) pageNode(id pgid) (*page, *node) {
- 	// Inline buckets have a fake page embedded in their value so treat them
- 	// differently. We'll return the rootNode (if available) or the fake page.
- 	if b.root == 0 {
--		_assert(id == 0, "inline bucket non-zero page access(2): %d != 0", id)
-+		if id != 0 {
-+			panic(fmt.Sprintf("inline bucket non-zero page access(2): %d != 0", id))
-+		}
- 		if b.rootNode != nil {
- 			return nil, b.rootNode
- 		}
-diff --git a/vendor/src/github.com/boltdb/bolt/cursor.go b/vendor/src/github.com/boltdb/bolt/cursor.go
-index 3bfc2f1..006c548 100644
---- a/vendor/src/github.com/boltdb/bolt/cursor.go
-+++ b/vendor/src/github.com/boltdb/bolt/cursor.go
-@@ -2,6 +2,7 @@ package bolt
- 
- import (
- 	"bytes"
-+	"fmt"
- 	"sort"
- )
- 
-@@ -9,6 +10,8 @@ import (
- // Cursors see nested buckets with value == nil.
- // Cursors can be obtained from a transaction and are valid as long as the transaction is open.
- //
-+// Keys and values returned from the cursor are only valid for the life of the transaction.
-+//
- // Changing data while traversing with a cursor may cause it to be invalidated
- // and return unexpected keys and/or values. You must reposition your cursor
- // after mutating data.
-@@ -24,6 +27,7 @@ func (c *Cursor) Bucket() *Bucket {
- 
- // First moves the cursor to the first item in the bucket and returns its key and value.
- // If the bucket is empty then a nil key and value are returned.
-+// The returned key and value are only valid for the life of the transaction.
- func (c *Cursor) First() (key []byte, value []byte) {
- 	_assert(c.bucket.tx.db != nil, "tx closed")
- 	c.stack = c.stack[:0]
-@@ -40,6 +44,7 @@ func (c *Cursor) First() (key []byte, value []byte) {
- 
- // Last moves the cursor to the last item in the bucket and returns its key and value.
- // If the bucket is empty then a nil key and value are returned.
-+// The returned key and value are only valid for the life of the transaction.
- func (c *Cursor) Last() (key []byte, value []byte) {
- 	_assert(c.bucket.tx.db != nil, "tx closed")
- 	c.stack = c.stack[:0]
-@@ -57,6 +62,7 @@ func (c *Cursor) Last() (key []byte, value []byte) {
- 
- // Next moves the cursor to the next item in the bucket and returns its key and value.
- // If the cursor is at the end of the bucket then a nil key and value are returned.
-+// The returned key and value are only valid for the life of the transaction.
- func (c *Cursor) Next() (key []byte, value []byte) {
- 	_assert(c.bucket.tx.db != nil, "tx closed")
- 	k, v, flags := c.next()
-@@ -68,6 +74,7 @@ func (c *Cursor) Next() (key []byte, value []byte) {
- 
- // Prev moves the cursor to the previous item in the bucket and returns its key and value.
- // If the cursor is at the beginning of the bucket then a nil key and value are returned.
-+// The returned key and value are only valid for the life of the transaction.
- func (c *Cursor) Prev() (key []byte, value []byte) {
- 	_assert(c.bucket.tx.db != nil, "tx closed")
- 
-@@ -99,6 +106,7 @@ func (c *Cursor) Prev() (key []byte, value []byte) {
- // Seek moves the cursor to a given key and returns it.
- // If the key does not exist then the next key is used. If no keys
- // follow, a nil key is returned.
-+// The returned key and value are only valid for the life of the transaction.
- func (c *Cursor) Seek(seek []byte) (key []byte, value []byte) {
- 	k, v, flags := c.seek(seek)
- 
-@@ -228,8 +236,8 @@ func (c *Cursor) next() (key []byte, value []byte, flags uint32) {
- // search recursively performs a binary search against a given page/node until it finds a given key.
- func (c *Cursor) search(key []byte, pgid pgid) {
- 	p, n := c.bucket.pageNode(pgid)
--	if p != nil {
--		_assert((p.flags&(branchPageFlag|leafPageFlag)) != 0, "invalid page type: %d: %x", p.id, p.flags)
-+	if p != nil && (p.flags&(branchPageFlag|leafPageFlag)) == 0 {
-+		panic(fmt.Sprintf("invalid page type: %d: %x", p.id, p.flags))
- 	}
- 	e := elemRef{page: p, node: n}
- 	c.stack = append(c.stack, e)
-diff --git a/vendor/src/github.com/boltdb/bolt/db.go b/vendor/src/github.com/boltdb/bolt/db.go
-index 6c45736..d39c4aa 100644
---- a/vendor/src/github.com/boltdb/bolt/db.go
-+++ b/vendor/src/github.com/boltdb/bolt/db.go
-@@ -12,9 +12,6 @@ import (
- 	"unsafe"
- )
- 
--// The smallest size that the mmap can be.
--const minMmapSize = 1 << 22 // 4MB
--
- // The largest step that can be taken when remapping the mmap.
- const maxMmapStep = 1 << 30 // 1GB
- 
-@@ -30,6 +27,12 @@ const magic uint32 = 0xED0CDAED
- // must be synchronzied using the msync(2) syscall.
- const IgnoreNoSync = runtime.GOOS == "openbsd"
- 
-+// Default values if not set in a DB instance.
-+const (
-+	DefaultMaxBatchSize  int = 1000
-+	DefaultMaxBatchDelay     = 10 * time.Millisecond
-+)
-+
- // DB represents a collection of buckets persisted to a file on disk.
- // All data access is performed through transactions which can be obtained through the DB.
- // All the functions on DB will return a ErrDatabaseNotOpen if accessed before Open() is called.
-@@ -52,9 +55,33 @@ type DB struct {
- 	// THIS IS UNSAFE. PLEASE USE WITH CAUTION.
- 	NoSync bool
- 
-+	// When true, skips the truncate call when growing the database.
-+	// Setting this to true is only safe on non-ext3/ext4 systems.
-+	// Skipping truncation avoids preallocation of hard drive space and
-+	// bypasses a truncate() and fsync() syscall on remapping.
-+	//
-+	// https://github.com/boltdb/bolt/issues/284
-+	NoGrowSync bool
-+
-+	// MaxBatchSize is the maximum size of a batch. Default value is
-+	// copied from DefaultMaxBatchSize in Open.
-+	//
-+	// If <=0, disables batching.
-+	//
-+	// Do not change concurrently with calls to Batch.
-+	MaxBatchSize int
-+
-+	// MaxBatchDelay is the maximum delay before a batch starts.
-+	// Default value is copied from DefaultMaxBatchDelay in Open.
-+	//
-+	// If <=0, effectively disables batching.
-+	//
-+	// Do not change concurrently with calls to Batch.
-+	MaxBatchDelay time.Duration
-+
- 	path     string
- 	file     *os.File
--	dataref  []byte
-+	dataref  []byte // mmap'ed readonly, write throws SEGV
- 	data     *[maxMapSize]byte
- 	datasz   int
- 	meta0    *meta
-@@ -66,6 +93,9 @@ type DB struct {
- 	freelist *freelist
- 	stats    Stats
- 
-+	batchMu sync.Mutex
-+	batch   *batch
-+
- 	rwlock   sync.Mutex   // Allows only one writer at a time.
- 	metalock sync.Mutex   // Protects meta page access.
- 	mmaplock sync.RWMutex // Protects mmap access during remapping.
-@@ -74,6 +104,10 @@ type DB struct {
- 	ops struct {
- 		writeAt func(b []byte, off int64) (n int, err error)
- 	}
-+
-+	// Read only mode.
-+	// When true, Update() and Begin(true) return ErrDatabaseReadOnly immediately.
-+	readOnly bool
- }
- 
- // Path returns the path to currently open database file.
-@@ -101,20 +135,34 @@ func Open(path string, mode os.FileMode, options *Options) (*DB, error) {
- 	if options == nil {
- 		options = DefaultOptions
- 	}
-+	db.NoGrowSync = options.NoGrowSync
-+
-+	// Set default values for later DB operations.
-+	db.MaxBatchSize = DefaultMaxBatchSize
-+	db.MaxBatchDelay = DefaultMaxBatchDelay
-+
-+	flag := os.O_RDWR
-+	if options.ReadOnly {
-+		flag = os.O_RDONLY
-+		db.readOnly = true
-+	}
- 
- 	// Open data file and separate sync handler for metadata writes.
- 	db.path = path
--
- 	var err error
--	if db.file, err = os.OpenFile(db.path, os.O_RDWR|os.O_CREATE, mode); err != nil {
-+	if db.file, err = os.OpenFile(db.path, flag|os.O_CREATE, mode); err != nil {
- 		_ = db.close()
- 		return nil, err
- 	}
- 
--	// Lock file so that other processes using Bolt cannot use the database
--	// at the same time. This would cause corruption since the two processes
--	// would write meta pages and free pages separately.
--	if err := flock(db.file, options.Timeout); err != nil {
-+	// Lock file so that other processes using Bolt in read-write mode cannot
-+	// use the database  at the same time. This would cause corruption since
-+	// the two processes would write meta pages and free pages separately.
-+	// The database file is locked exclusively (only one process can grab the lock)
-+	// if !options.ReadOnly.
-+	// The database file is locked using the shared lock (more than one process may
-+	// hold a lock at the same time) otherwise (options.ReadOnly is set).
-+	if err := flock(db.file, !db.readOnly, options.Timeout); err != nil {
- 		_ = db.close()
- 		return nil, err
- 	}
-@@ -162,16 +210,6 @@ func (db *DB) mmap(minsz int) error {
- 	db.mmaplock.Lock()
- 	defer db.mmaplock.Unlock()
- 
--	// Dereference all mmap references before unmapping.
--	if db.rwtx != nil {
--		db.rwtx.root.dereference()
--	}
--
--	// Unmap existing data before continuing.
--	if err := db.munmap(); err != nil {
--		return err
--	}
--
- 	info, err := db.file.Stat()
- 	if err != nil {
- 		return fmt.Errorf("mmap stat error: %s", err)
-@@ -184,7 +222,20 @@ func (db *DB) mmap(minsz int) error {
- 	if size < minsz {
- 		size = minsz
- 	}
--	size = db.mmapSize(size)
-+	size, err = db.mmapSize(size)
-+	if err != nil {
-+		return err
-+	}
-+
-+	// Dereference all mmap references before unmapping.
-+	if db.rwtx != nil {
-+		db.rwtx.root.dereference()
-+	}
-+
-+	// Unmap existing data before continuing.
-+	if err := db.munmap(); err != nil {
-+		return err
-+	}
- 
- 	// Memory-map the data file as a byte slice.
- 	if err := mmap(db, size); err != nil {
-@@ -215,22 +266,40 @@ func (db *DB) munmap() error {
- }
- 
- // mmapSize determines the appropriate size for the mmap given the current size
--// of the database. The minimum size is 4MB and doubles until it reaches 1GB.
--func (db *DB) mmapSize(size int) int {
--	if size <= minMmapSize {
--		return minMmapSize
--	} else if size < maxMmapStep {
--		size *= 2
--	} else {
--		size += maxMmapStep
-+// of the database. The minimum size is 1MB and doubles until it reaches 1GB.
-+// Returns an error if the new mmap size is greater than the max allowed.
-+func (db *DB) mmapSize(size int) (int, error) {
-+	// Double the size from 32KB until 1GB.
-+	for i := uint(15); i <= 30; i++ {
-+		if size <= 1<<i {
-+			return 1 << i, nil
-+		}
-+	}
-+
-+	// Verify the requested size is not above the maximum allowed.
-+	if size > maxMapSize {
-+		return 0, fmt.Errorf("mmap too large")
-+	}
-+
-+	// If larger than 1GB then grow by 1GB at a time.
-+	sz := int64(size)
-+	if remainder := sz % int64(maxMmapStep); remainder > 0 {
-+		sz += int64(maxMmapStep) - remainder
- 	}
- 
- 	// Ensure that the mmap size is a multiple of the page size.
--	if (size % db.pageSize) != 0 {
--		size = ((size / db.pageSize) + 1) * db.pageSize
-+	// This should always be true since we're incrementing in MBs.
-+	pageSize := int64(db.pageSize)
-+	if (sz % pageSize) != 0 {
-+		sz = ((sz / pageSize) + 1) * pageSize
-+	}
-+
-+	// If we've exceeded the max size then only grow up to the max size.
-+	if sz > maxMapSize {
-+		sz = maxMapSize
- 	}
- 
--	return size
-+	return int(sz), nil
- }
- 
- // init creates a new database file and initializes its meta pages.
-@@ -250,7 +319,6 @@ func (db *DB) init() error {
- 		m.magic = magic
- 		m.version = version
- 		m.pageSize = uint32(db.pageSize)
--		m.version = version
- 		m.freelist = 2
- 		m.root = bucket{root: 3}
- 		m.pgid = 4
-@@ -283,8 +351,15 @@ func (db *DB) init() error {
- // Close releases all database resources.
- // All transactions must be closed before closing the database.
- func (db *DB) Close() error {
-+	db.rwlock.Lock()
-+	defer db.rwlock.Unlock()
-+
- 	db.metalock.Lock()
- 	defer db.metalock.Unlock()
-+
-+	db.mmaplock.RLock()
-+	defer db.mmaplock.RUnlock()
-+
- 	return db.close()
- }
- 
-@@ -304,8 +379,11 @@ func (db *DB) close() error {
- 
- 	// Close file handles.
- 	if db.file != nil {
--		// Unlock the file.
--		_ = funlock(db.file)
-+		// No need to unlock read-only file.
-+		if !db.readOnly {
-+			// Unlock the file.
-+			_ = funlock(db.file)
-+		}
- 
- 		// Close the file descriptor.
- 		if err := db.file.Close(); err != nil {
-@@ -323,6 +401,11 @@ func (db *DB) close() error {
- // will cause the calls to block and be serialized until the current write
- // transaction finishes.
- //
-+// Transactions should not be depedent on one another. Opening a read
-+// transaction and a write transaction in the same goroutine can cause the
-+// writer to deadlock because the database periodically needs to re-mmap itself
-+// as it grows and it cannot do that while a read transaction is open.
-+//
- // IMPORTANT: You must close read-only transactions after you are finished or
- // else the database will not reclaim old pages.
- func (db *DB) Begin(writable bool) (*Tx, error) {
-@@ -371,6 +454,11 @@ func (db *DB) beginTx() (*Tx, error) {
- }
- 
- func (db *DB) beginRWTx() (*Tx, error) {
-+	// If the database was opened with Options.ReadOnly, return an error.
-+	if db.readOnly {
-+		return nil, ErrDatabaseReadOnly
-+	}
-+
- 	// Obtain writer lock. This is released by the transaction when it closes.
- 	// This enforces only one writer transaction at a time.
- 	db.rwlock.Lock()
-@@ -501,6 +589,12 @@ func (db *DB) View(fn func(*Tx) error) error {
- 	return nil
- }
- 
-+// Sync executes fdatasync() against the database file handle.
-+//
-+// This is not necessary under normal operation, however, if you use NoSync
-+// then it allows you to force the database file to sync against the disk.
-+func (db *DB) Sync() error { return fdatasync(db) }
-+
- // Stats retrieves ongoing performance stats for the database.
- // This is only updated when a transaction closes.
- func (db *DB) Stats() Stats {
-@@ -561,18 +655,30 @@ func (db *DB) allocate(count int) (*page, error) {
- 	return p, nil
- }
- 
-+func (db *DB) IsReadOnly() bool {
-+	return db.readOnly
-+}
-+
- // Options represents the options that can be set when opening a database.
- type Options struct {
- 	// Timeout is the amount of time to wait to obtain a file lock.
- 	// When set to zero it will wait indefinitely. This option is only
- 	// available on Darwin and Linux.
- 	Timeout time.Duration
-+
-+	// Sets the DB.NoGrowSync flag before memory mapping the file.
-+	NoGrowSync bool
-+
-+	// Open database in read-only mode. Uses flock(..., LOCK_SH |LOCK_NB) to
-+	// grab a shared lock (UNIX).
-+	ReadOnly bool
- }
- 
- // DefaultOptions represent the options used if nil options are passed into Open().
- // No timeout is used which will cause Bolt to wait indefinitely for a lock.
- var DefaultOptions = &Options{
--	Timeout: 0,
-+	Timeout:    0,
-+	NoGrowSync: false,
- }
- 
- // Stats represents statistics about the database.
-@@ -647,9 +753,11 @@ func (m *meta) copy(dest *meta) {
- 
- // write writes the meta onto a page.
- func (m *meta) write(p *page) {
--
--	_assert(m.root.root < m.pgid, "root bucket pgid (%d) above high water mark (%d)", m.root.root, m.pgid)
--	_assert(m.freelist < m.pgid, "freelist pgid (%d) above high water mark (%d)", m.freelist, m.pgid)
-+	if m.root.root >= m.pgid {
-+		panic(fmt.Sprintf("root bucket pgid (%d) above high water mark (%d)", m.root.root, m.pgid))
-+	} else if m.freelist >= m.pgid {
-+		panic(fmt.Sprintf("freelist pgid (%d) above high water mark (%d)", m.freelist, m.pgid))
-+	}
- 
- 	// Page id is either going to be 0 or 1 which we can determine by the transaction ID.
- 	p.id = pgid(m.txid % 2)
-@@ -675,13 +783,8 @@ func _assert(condition bool, msg string, v ...interface{}) {
- 	}
- }
- 
--func warn(v ...interface{}) {
--	fmt.Fprintln(os.Stderr, v...)
--}
--
--func warnf(msg string, v ...interface{}) {
--	fmt.Fprintf(os.Stderr, msg+"\n", v...)
--}
-+func warn(v ...interface{})              { fmt.Fprintln(os.Stderr, v...) }
-+func warnf(msg string, v ...interface{}) { fmt.Fprintf(os.Stderr, msg+"\n", v...) }
- 
- func printstack() {
- 	stack := strings.Join(strings.Split(string(debug.Stack()), "\n")[2:], "\n")
-diff --git a/vendor/src/github.com/boltdb/bolt/errors.go b/vendor/src/github.com/boltdb/bolt/errors.go
-index aa504f1..6883786 100644
---- a/vendor/src/github.com/boltdb/bolt/errors.go
-+++ b/vendor/src/github.com/boltdb/bolt/errors.go
-@@ -36,6 +36,10 @@ var (
- 	// ErrTxClosed is returned when committing or rolling back a transaction
- 	// that has already been committed or rolled back.
- 	ErrTxClosed = errors.New("tx closed")
-+
-+	// ErrDatabaseReadOnly is returned when a mutating transaction is started on a
-+	// read-only database.
-+	ErrDatabaseReadOnly = errors.New("database is in read-only mode")
- )
- 
- // These errors can occur when putting or deleting a value or a bucket.
-diff --git a/vendor/src/github.com/boltdb/bolt/freelist.go b/vendor/src/github.com/boltdb/bolt/freelist.go
-index 150e3e6..0161948 100644
---- a/vendor/src/github.com/boltdb/bolt/freelist.go
-+++ b/vendor/src/github.com/boltdb/bolt/freelist.go
-@@ -1,6 +1,7 @@
- package bolt
- 
- import (
-+	"fmt"
- 	"sort"
- 	"unsafe"
- )
-@@ -47,15 +48,14 @@ func (f *freelist) pending_count() int {
- 
- // all returns a list of all free ids and all pending ids in one sorted list.
- func (f *freelist) all() []pgid {
--	ids := make([]pgid, len(f.ids))
--	copy(ids, f.ids)
-+	m := make(pgids, 0)
- 
- 	for _, list := range f.pending {
--		ids = append(ids, list...)
-+		m = append(m, list...)
- 	}
- 
--	sort.Sort(pgids(ids))
--	return ids
-+	sort.Sort(m)
-+	return pgids(f.ids).merge(m)
- }
- 
- // allocate returns the starting page id of a contiguous list of pages of a given size.
-@@ -67,7 +67,9 @@ func (f *freelist) allocate(n int) pgid {
- 
- 	var initial, previd pgid
- 	for i, id := range f.ids {
--		_assert(id > 1, "invalid page allocation: %d", id)
-+		if id <= 1 {
-+			panic(fmt.Sprintf("invalid page allocation: %d", id))
-+		}
- 
- 		// Reset initial page if this is not contiguous.
- 		if previd == 0 || id-previd != 1 {
-@@ -103,13 +105,17 @@ func (f *freelist) allocate(n int) pgid {
- // free releases a page and its overflow for a given transaction id.
- // If the page is already free then a panic will occur.
- func (f *freelist) free(txid txid, p *page) {
--	_assert(p.id > 1, "cannot free page 0 or 1: %d", p.id)
-+	if p.id <= 1 {
-+		panic(fmt.Sprintf("cannot free page 0 or 1: %d", p.id))
-+	}
- 
- 	// Free page and all its overflow pages.
- 	var ids = f.pending[txid]
- 	for id := p.id; id <= p.id+pgid(p.overflow); id++ {
- 		// Verify that page is not already free.
--		_assert(!f.cache[id], "page %d already freed", id)
-+		if f.cache[id] {
-+			panic(fmt.Sprintf("page %d already freed", id))
-+		}
- 
- 		// Add to the freelist and cache.
- 		ids = append(ids, id)
-@@ -120,15 +126,17 @@ func (f *freelist) free(txid txid, p *page) {
- 
- // release moves all page ids for a transaction id (or older) to the freelist.
- func (f *freelist) release(txid txid) {
-+	m := make(pgids, 0)
- 	for tid, ids := range f.pending {
- 		if tid <= txid {
- 			// Move transaction's pending pages to the available freelist.
- 			// Don't remove from the cache since the page is still free.
--			f.ids = append(f.ids, ids...)
-+			m = append(m, ids...)
- 			delete(f.pending, tid)
- 		}
- 	}
--	sort.Sort(pgids(f.ids))
-+	sort.Sort(m)
-+	f.ids = pgids(f.ids).merge(m)
- }
- 
- // rollback removes the pages from a given pending tx.
-diff --git a/vendor/src/github.com/boltdb/bolt/node.go b/vendor/src/github.com/boltdb/bolt/node.go
-index c204c39..c9fb21c 100644
---- a/vendor/src/github.com/boltdb/bolt/node.go
-+++ b/vendor/src/github.com/boltdb/bolt/node.go
-@@ -2,6 +2,7 @@ package bolt
- 
- import (
- 	"bytes"
-+	"fmt"
- 	"sort"
- 	"unsafe"
- )
-@@ -70,7 +71,9 @@ func (n *node) pageElementSize() int {
- 
- // childAt returns the child node at a given index.
- func (n *node) childAt(index int) *node {
--	_assert(!n.isLeaf, "invalid childAt(%d) on a leaf node", index)
-+	if n.isLeaf {
-+		panic(fmt.Sprintf("invalid childAt(%d) on a leaf node", index))
-+	}
- 	return n.bucket.node(n.inodes[index].pgid, n)
- }
- 
-@@ -111,9 +114,13 @@ func (n *node) prevSibling() *node {
- 
- // put inserts a key/value.
- func (n *node) put(oldKey, newKey, value []byte, pgid pgid, flags uint32) {
--	_assert(pgid < n.bucket.tx.meta.pgid, "pgid (%d) above high water mark (%d)", pgid, n.bucket.tx.meta.pgid)
--	_assert(len(oldKey) > 0, "put: zero-length old key")
--	_assert(len(newKey) > 0, "put: zero-length new key")
-+	if pgid >= n.bucket.tx.meta.pgid {
-+		panic(fmt.Sprintf("pgid (%d) above high water mark (%d)", pgid, n.bucket.tx.meta.pgid))
-+	} else if len(oldKey) <= 0 {
-+		panic("put: zero-length old key")
-+	} else if len(newKey) <= 0 {
-+		panic("put: zero-length new key")
-+	}
- 
- 	// Find insertion index.
- 	index := sort.Search(len(n.inodes), func(i int) bool { return bytes.Compare(n.inodes[i].key, oldKey) != -1 })
-@@ -189,7 +196,9 @@ func (n *node) write(p *page) {
- 		p.flags |= branchPageFlag
- 	}
- 
--	_assert(len(n.inodes) < 0xFFFF, "inode overflow: %d (pgid=%d)", len(n.inodes), p.id)
-+	if len(n.inodes) >= 0xFFFF {
-+		panic(fmt.Sprintf("inode overflow: %d (pgid=%d)", len(n.inodes), p.id))
-+	}
- 	p.count = uint16(len(n.inodes))
- 
- 	// Loop over each item and write it to the page.
-@@ -212,11 +221,20 @@ func (n *node) write(p *page) {
- 			_assert(elem.pgid != p.id, "write: circular dependency occurred")
- 		}
- 
-+		// If the length of key+value is larger than the max allocation size
-+		// then we need to reallocate the byte array pointer.
-+		//
-+		// See: https://github.com/boltdb/bolt/pull/335
-+		klen, vlen := len(item.key), len(item.value)
-+		if len(b) < klen+vlen {
-+			b = (*[maxAllocSize]byte)(unsafe.Pointer(&b[0]))[:]
-+		}
-+
- 		// Write data for the element to the end of the page.
- 		copy(b[0:], item.key)
--		b = b[len(item.key):]
-+		b = b[klen:]
- 		copy(b[0:], item.value)
--		b = b[len(item.value):]
-+		b = b[vlen:]
- 	}
- 
- 	// DEBUG ONLY: n.dump()
-@@ -348,7 +366,9 @@ func (n *node) spill() error {
- 		}
- 
- 		// Write the node.
--		_assert(p.id < tx.meta.pgid, "pgid (%d) above high water mark (%d)", p.id, tx.meta.pgid)
-+		if p.id >= tx.meta.pgid {
-+			panic(fmt.Sprintf("pgid (%d) above high water mark (%d)", p.id, tx.meta.pgid))
-+		}
- 		node.pgid = p.id
- 		node.write(p)
- 		node.spilled = true
-diff --git a/vendor/src/github.com/boltdb/bolt/page.go b/vendor/src/github.com/boltdb/bolt/page.go
-index b3dc473..818aa1b 100644
---- a/vendor/src/github.com/boltdb/bolt/page.go
-+++ b/vendor/src/github.com/boltdb/bolt/page.go
-@@ -3,12 +3,12 @@ package bolt
- import (
- 	"fmt"
- 	"os"
-+	"sort"
- 	"unsafe"
- )
- 
- const pageHeaderSize = int(unsafe.Offsetof(((*page)(nil)).ptr))
- 
--const maxAllocSize = 0xFFFFFFF
- const minKeysPerPage = 2
- 
- const branchPageElementSize = int(unsafe.Sizeof(branchPageElement{}))
-@@ -97,7 +97,7 @@ type branchPageElement struct {
- // key returns a byte slice of the node key.
- func (n *branchPageElement) key() []byte {
- 	buf := (*[maxAllocSize]byte)(unsafe.Pointer(n))
--	return buf[n.pos : n.pos+n.ksize]
-+	return (*[maxAllocSize]byte)(unsafe.Pointer(&buf[n.pos]))[:n.ksize]
- }
- 
- // leafPageElement represents a node on a leaf page.
-@@ -111,13 +111,13 @@ type leafPageElement struct {
- // key returns a byte slice of the node key.
- func (n *leafPageElement) key() []byte {
- 	buf := (*[maxAllocSize]byte)(unsafe.Pointer(n))
--	return buf[n.pos : n.pos+n.ksize]
-+	return (*[maxAllocSize]byte)(unsafe.Pointer(&buf[n.pos]))[:n.ksize]
- }
- 
- // value returns a byte slice of the node value.
- func (n *leafPageElement) value() []byte {
- 	buf := (*[maxAllocSize]byte)(unsafe.Pointer(n))
--	return buf[n.pos+n.ksize : n.pos+n.ksize+n.vsize]
-+	return (*[maxAllocSize]byte)(unsafe.Pointer(&buf[n.pos+n.ksize]))[:n.vsize]
- }
- 
- // PageInfo represents human readable information about a page.
-@@ -133,3 +133,40 @@ type pgids []pgid
- func (s pgids) Len() int           { return len(s) }
- func (s pgids) Swap(i, j int)      { s[i], s[j] = s[j], s[i] }
- func (s pgids) Less(i, j int) bool { return s[i] < s[j] }
-+
-+// merge returns the sorted union of a and b.
-+func (a pgids) merge(b pgids) pgids {
-+	// Return the opposite slice if one is nil.
-+	if len(a) == 0 {
-+		return b
-+	} else if len(b) == 0 {
-+		return a
-+	}
-+
-+	// Create a list to hold all elements from both lists.
-+	merged := make(pgids, 0, len(a)+len(b))
-+
-+	// Assign lead to the slice with a lower starting value, follow to the higher value.
-+	lead, follow := a, b
-+	if b[0] < a[0] {
-+		lead, follow = b, a
-+	}
-+
-+	// Continue while there are elements in the lead.
-+	for len(lead) > 0 {
-+		// Merge largest prefix of lead that is ahead of follow[0].
-+		n := sort.Search(len(lead), func(i int) bool { return lead[i] > follow[0] })
-+		merged = append(merged, lead[:n]...)
-+		if n >= len(lead) {
-+			break
-+		}
-+
-+		// Swap lead and follow.
-+		lead, follow = follow, lead[n:]
-+	}
-+
-+	// Append what's left in follow.
-+	merged = append(merged, follow...)
-+
-+	return merged
-+}
-diff --git a/vendor/src/github.com/boltdb/bolt/tx.go b/vendor/src/github.com/boltdb/bolt/tx.go
-index c041d73..fe6c287 100644
---- a/vendor/src/github.com/boltdb/bolt/tx.go
-+++ b/vendor/src/github.com/boltdb/bolt/tx.go
-@@ -87,18 +87,21 @@ func (tx *Tx) Stats() TxStats {
- 
- // Bucket retrieves a bucket by name.
- // Returns nil if the bucket does not exist.
-+// The bucket instance is only valid for the lifetime of the transaction.
- func (tx *Tx) Bucket(name []byte) *Bucket {
- 	return tx.root.Bucket(name)
- }
- 
- // CreateBucket creates a new bucket.
- // Returns an error if the bucket already exists, if the bucket name is blank, or if the bucket name is too long.
-+// The bucket instance is only valid for the lifetime of the transaction.
- func (tx *Tx) CreateBucket(name []byte) (*Bucket, error) {
- 	return tx.root.CreateBucket(name)
- }
- 
- // CreateBucketIfNotExists creates a new bucket if it doesn't already exist.
- // Returns an error if the bucket name is blank, or if the bucket name is too long.
-+// The bucket instance is only valid for the lifetime of the transaction.
- func (tx *Tx) CreateBucketIfNotExists(name []byte) (*Bucket, error) {
- 	return tx.root.CreateBucketIfNotExists(name)
- }
-@@ -127,7 +130,8 @@ func (tx *Tx) OnCommit(fn func()) {
- }
- 
- // Commit writes all changes to disk and updates the meta page.
--// Returns an error if a disk write error occurs.
-+// Returns an error if a disk write error occurs, or if Commit is
-+// called on a read-only transaction.
- func (tx *Tx) Commit() error {
- 	_assert(!tx.managed, "managed tx commit not allowed")
- 	if tx.db == nil {
-@@ -203,7 +207,8 @@ func (tx *Tx) Commit() error {
- 	return nil
- }
- 
--// Rollback closes the transaction and ignores all previous updates.
-+// Rollback closes the transaction and ignores all previous updates. Read-only
-+// transactions must be rolled back and not committed.
- func (tx *Tx) Rollback() error {
- 	_assert(!tx.managed, "managed tx rollback not allowed")
- 	if tx.db == nil {
-@@ -234,7 +239,8 @@ func (tx *Tx) close() {
- 		var freelistPendingN = tx.db.freelist.pending_count()
- 		var freelistAlloc = tx.db.freelist.size()
- 
--		// Remove writer lock.
-+		// Remove transaction ref & writer lock.
-+		tx.db.rwtx = nil
- 		tx.db.rwlock.Unlock()
- 
- 		// Merge statistics.
-@@ -248,41 +254,51 @@ func (tx *Tx) close() {
- 	} else {
- 		tx.db.removeTx(tx)
- 	}
-+
-+	// Clear all references.
- 	tx.db = nil
-+	tx.meta = nil
-+	tx.root = Bucket{tx: tx}
-+	tx.pages = nil
- }
- 
- // Copy writes the entire database to a writer.
--// A reader transaction is maintained during the copy so it is safe to continue
--// using the database while a copy is in progress.
--// Copy will write exactly tx.Size() bytes into the writer.
-+// This function exists for backwards compatibility. Use WriteTo() in
- func (tx *Tx) Copy(w io.Writer) error {
--	var f *os.File
--	var err error
-+	_, err := tx.WriteTo(w)
-+	return err
-+}
- 
-+// WriteTo writes the entire database to a writer.
-+// If err == nil then exactly tx.Size() bytes will be written into the writer.
-+func (tx *Tx) WriteTo(w io.Writer) (n int64, err error) {
- 	// Attempt to open reader directly.
-+	var f *os.File
- 	if f, err = os.OpenFile(tx.db.path, os.O_RDONLY|odirect, 0); err != nil {
- 		// Fallback to a regular open if that doesn't work.
- 		if f, err = os.OpenFile(tx.db.path, os.O_RDONLY, 0); err != nil {
--			return err
-+			return 0, err
- 		}
- 	}
- 
- 	// Copy the meta pages.
- 	tx.db.metalock.Lock()
--	_, err = io.CopyN(w, f, int64(tx.db.pageSize*2))
-+	n, err = io.CopyN(w, f, int64(tx.db.pageSize*2))
- 	tx.db.metalock.Unlock()
- 	if err != nil {
- 		_ = f.Close()
--		return fmt.Errorf("meta copy: %s", err)
-+		return n, fmt.Errorf("meta copy: %s", err)
- 	}
- 
- 	// Copy data pages.
--	if _, err := io.CopyN(w, f, tx.Size()-int64(tx.db.pageSize*2)); err != nil {
-+	wn, err := io.CopyN(w, f, tx.Size()-int64(tx.db.pageSize*2))
-+	n += wn
-+	if err != nil {
- 		_ = f.Close()
--		return err
-+		return n, err
- 	}
- 
--	return f.Close()
-+	return n, f.Close()
- }
- 
- // CopyFile copies the entire database to file at the given path.
-@@ -416,15 +432,39 @@ func (tx *Tx) write() error {
- 	// Write pages to disk in order.
- 	for _, p := range pages {
- 		size := (int(p.overflow) + 1) * tx.db.pageSize
--		buf := (*[maxAllocSize]byte)(unsafe.Pointer(p))[:size]
- 		offset := int64(p.id) * int64(tx.db.pageSize)
--		if _, err := tx.db.ops.writeAt(buf, offset); err != nil {
--			return err
--		}
- 
--		// Update statistics.
--		tx.stats.Write++
-+		// Write out page in "max allocation" sized chunks.
-+		ptr := (*[maxAllocSize]byte)(unsafe.Pointer(p))
-+		for {
-+			// Limit our write to our max allocation size.
-+			sz := size
-+			if sz > maxAllocSize-1 {
-+				sz = maxAllocSize - 1
-+			}
-+
-+			// Write chunk to disk.
-+			buf := ptr[:sz]
-+			if _, err := tx.db.ops.writeAt(buf, offset); err != nil {
-+				return err
-+			}
-+
-+			// Update statistics.
-+			tx.stats.Write++
-+
-+			// Exit inner for loop if we've written all the chunks.
-+			size -= sz
-+			if size == 0 {
-+				break
-+			}
-+
-+			// Otherwise move offset forward and move pointer to next chunk.
-+			offset += int64(sz)
-+			ptr = (*[maxAllocSize]byte)(unsafe.Pointer(&ptr[sz]))
-+		}
- 	}
-+
-+	// Ignore file sync if flag is set on DB.
- 	if !tx.db.NoSync || IgnoreNoSync {
- 		if err := fdatasync(tx.db); err != nil {
- 			return err
--- 
-1.9.1
-
diff --git a/import-layers/meta-virtualization/recipes-containers/docker/files/disable_sha1sum_startup.patch b/import-layers/meta-virtualization/recipes-containers/docker/files/disable_sha1sum_startup.patch
deleted file mode 100644
index d37d7a0..0000000
--- a/import-layers/meta-virtualization/recipes-containers/docker/files/disable_sha1sum_startup.patch
+++ /dev/null
@@ -1,56 +0,0 @@
-From 12fd6388a033ab5ec9b3a7b144c4976031e6aa52 Mon Sep 17 00:00:00 2001
-From: Bogdan Purcareata <bogdan.purcareata@freescale.com>
-Date: Fri, 20 Nov 2015 10:02:09 +0000
-Subject: [PATCH] disable sha1sum startup
-
-Signed-off-by: Bogdan Purcareata <bogdan.purcareata@freescale.com>
----
- utils/utils.go | 18 +-----------------
- 1 file changed, 1 insertion(+), 17 deletions(-)
-
-diff --git a/utils/utils.go b/utils/utils.go
-index a17ab9d..3fc514a 100644
---- a/utils/utils.go
-+++ b/utils/utils.go
-@@ -2,8 +2,6 @@ package utils
- 
- import (
- 	"bufio"
--	"crypto/sha1"
--	"encoding/hex"
- 	"fmt"
- 	"io"
- 	"io/ioutil"
-@@ -42,20 +40,6 @@ func SelfPath() string {
- 	return path
- }
- 
--func dockerInitSha1(target string) string {
--	f, err := os.Open(target)
--	if err != nil {
--		return ""
--	}
--	defer f.Close()
--	h := sha1.New()
--	_, err = io.Copy(h, f)
--	if err != nil {
--		return ""
--	}
--	return hex.EncodeToString(h.Sum(nil))
--}
--
- func isValidDockerInitPath(target string, selfPath string) bool { // target and selfPath should be absolute (InitPath and SelfPath already do this)
- 	if target == "" {
- 		return false
-@@ -77,7 +61,7 @@ func isValidDockerInitPath(target string, selfPath string) bool { // target and
- 		}
- 		return os.SameFile(targetFileInfo, selfPathFileInfo)
- 	}
--	return dockerversion.INITSHA1 != "" && dockerInitSha1(target) == dockerversion.INITSHA1
-+	return true
- }
- 
- // DockerInitPath figures out the path of our dockerinit (which may be SelfPath())
--- 
-1.9.1
-
diff --git a/import-layers/meta-virtualization/recipes-containers/docker/files/docker.service b/import-layers/meta-virtualization/recipes-containers/docker/files/docker.service
index 6801031..eaa3319 100644
--- a/import-layers/meta-virtualization/recipes-containers/docker/files/docker.service
+++ b/import-layers/meta-virtualization/recipes-containers/docker/files/docker.service
@@ -5,7 +5,7 @@
 Requires=docker.socket
 
 [Service]
-ExecStart=/usr/bin/docker -d -H fd:// --registry-mirror=http://localhost:5000 --insecure-registry=http://localhost:5000
+ExecStart=/usr/bin/docker daemon -H fd:// --registry-mirror=http://localhost:5000 --insecure-registry=http://localhost:5000 --raw-logs
 MountFlags=slave
 LimitNOFILE=1048576
 LimitNPROC=1048576