Add python-rocket recipe

Rocket is an minimal wsgi http server.
diff --git a/common/recipes-devtools/python/python-rocket_1.2.4.bb b/common/recipes-devtools/python/python-rocket_1.2.4.bb
new file mode 100644
index 0000000..8d8008a
--- /dev/null
+++ b/common/recipes-devtools/python/python-rocket_1.2.4.bb
@@ -0,0 +1,5 @@
+SRCNAME = "Rocket"
+SRC_URI = "https://pypi.python.org/packages/source/r/rocket/${SRCNAME}-${PV}.zip;name=tarball file://LICENSE file://setup.patch"
+SRC_URI[tarball.sha256sum] = "7b7a3df4d9257e369d85bcc2013351704ffe364ff45d4710e6a30b2efc63a731"
+SRC_URI[tarball.md5sum] = "fa611955154b486bb91e632a43e90f4b"
+require python-rocket.inc