Some files were missing from tarballs generated using
'python setup.py sdist', this adds them to MANIFEST.in.
Fixes bug 1001217.
Change-Id: I0c99deba3f24989b34cff27b5d3cd1c999cd08fa
Copied mostly from python-keystoneclient with
some Glance-specific stuff. README.rst shows what
WILL be the way to do things, not what is currently coded :)