Remove compiled message catalogs

A kind of binary files are useless to be maintained in git repo.
I18N team and package distributors have agreed to remove compiled
message catalogs from openstack-auth git repository.

To compile message catalogs, run the following command before
the installation:

  python setup.py compile_catalog

Make sure to install Babel>=1.3 before running the above command.

DocImpact
Closes-Bug: #1196982

Change-Id: Iab2398e942e142f9ab370d8a8f9d539b257e1620

.gitignore

@@ -1,6 +1,7 @@
 *.pyc
 *.egg
 *.egg-info
+*.mo
 .DS_STORE
 docs/_build
 build