Fix inconsistent behaviour exceeding quota limit

Added quota checks for security groups, networks and routers. If quotas are
exceeded then buttons to create are disabled and feedback is given to the
user.

Appropriate tests are also in place

Change-Id: Ie49db5397d87a0c9a583b64e5de34460144b5956
Closes-bug: 1278449
Revert file permissions

Two files that were merged under patches https://review.openstack.org/#/c/118475/
and https://review.openstack.org/#/c/117268/ inadvertently changed file
permissions from 644 to 755.

Change-Id: I99a3e3cb1430cb4ac82dc3cfe1be140c9c91185e
Closes-Bug: #1379033
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 Horizon git repository.

The instruction on how to compile message catalogs will be
covered by https://review.openstack.org/#/c/126169/
or the installation guide.

DocImpact

Change-Id: I81b05cf79c21d85bed8a6da6df659955e7ac58c5
Closes-Bug: #1196982
Hide right border for the active tab in nav bar

Error introduced by my previous patch to fix the small gap in the
nav sidebar (https://review.openstack.org/#/c/126642/).

Change-Id: I81bd8bbeec97946d0d3d977e3ecfa27fe21b7546
'Delete Volume Types' button typo

Change-Id: Ib2bd480ece327ca7db8d0e74d76ddd2cb9df4cd6
Closes-Bug: #1379589
Imported Translations from Transifex

Change-Id: I1be1e55c3901353f88df53f705f7b530f4b19cbf
Merge "'Delete Volume Types' button typo"
Merge "Hide right border for the active tab in nav bar"
Merge "Fix inconsistent behaviour exceeding quota limit"
Merge "Revert file permissions"
Merge "Remove compiled message catalogs"
Merge branch 'master' of https://github.com/openstack/horizon