Sync translation message catalogs with the latest code

In Grizzly branch several strings have been cleaned up since
the release. This commit update message catalog based on the
current code. This allows translators to use the latest ones
and it is good to sync them with the code before the release.

Fixes bug #1207442

Note that this patch is directly posted since message strings
in master are different and will be updated at different timing.

Change-Id: I53cfb5be2f791f5e446fba5a838fd2512d994146
Cap django_openstack_auth

The initial requirement change was not restrictive enough for the
stable branches.

Fixes bug #1207599

Change-Id: I8201216b26756989ccd5285a76178b2fd66a3353
Merge "Sync translation message catalogs with the latest code" into stable/grizzly
Merge branch 'stable/grizzly' of https://github.com/openstack/horizon into grizzly/router_rules