Python cleanup

CherryPy won't be used so remove it.
Use wsgi and email that comes with python.
Remove wsgi and email standalone recipes.
Update bottle and rocket to use new packages.
diff --git a/common/recipes-devtools/python/wsgiref-2.7-manifest.inc b/common/recipes-devtools/python/wsgiref-2.7-manifest.inc
new file mode 100644
index 0000000..a21d05e
--- /dev/null
+++ b/common/recipes-devtools/python/wsgiref-2.7-manifest.inc
@@ -0,0 +1,33 @@
+NAME = "wsgiref"
+
+PROVIDES_prepend = "${PN}-${NAME} ${PN}-${NAME}-headers ${PN}-${NAME}-handlers ${PN}-${NAME}-validate ${PN}-${NAME}-simple_server ${PN}-${NAME}-util "
+PACKAGES_prepend = "${PN}-${NAME} ${PN}-${NAME}-headers ${PN}-${NAME}-handlers ${PN}-${NAME}-validate ${PN}-${NAME}-simple_server ${PN}-${NAME}-util "
+
+package_dir = "${libdir}/python${PYTHON_MAJMIN}/${NAME}"
+
+SUMMARY_${PN}-${NAME}-handlers = "${NAME} handlers"
+RDEPENDS_${PN}-${NAME}-handlers = "${PN}-${NAME}-util ${PN}-${NAME}-headers"
+FILES_${PN}-${NAME}-handlers = "${package_dir}/handlers.py*"
+
+SUMMARY_${PN}-${NAME}-headers = "${NAME} headers"
+RDEPENDS_${PN}-${NAME}-headers = "${PN}-${NAME}"
+FILES_${PN}-${NAME}-headers = "${package_dir}/headers.py*"
+
+SUMMARY_${PN}-${NAME}-simple_server = "${NAME} simple server"
+RDEPENDS_${PN}-${NAME}-simple_server = "${PN}-${NAME}-handlers"
+FILES_${PN}-${NAME}-simple_server = "${package_dir}/simple_server.py*"
+
+SUMMARY_${PN}-${NAME}-util = "${NAME} util"
+RDEPENDS_${PN}-${NAME}-util = "${PN}-${NAME}"
+FILES_${PN}-${NAME}-util = "${package_dir}/util.py*"
+
+SUMMARY_${PN}-${NAME}-validate = "${NAME} validate"
+RDEPENDS_${PN}-${NAME}-validate = "${PN}-${NAME}"
+FILES_${PN}-${NAME}-validate = "${package_dir}/validate.py*"
+
+SUMMARY_${PN}-${NAME} = "WSGI (PEP 333) Reference Library"
+RDEPENDS_${PN}-${NAME} = "${PN}-core"
+FILES_${PN}-${NAME} = " \
+        ${package_dir}/__init__.py* \
+        ${package_dir}.egg-info \
+        "