Closes-Bug: #1179526
source_lang mismatch between Horizon and OpenStack Hub projects
has been addressed and the soruce language is changed from en_US
to en. This commit updates .tx/config to catch up it.
Also adds an entry for djangojs.po translation which was added
to Transifex recently.
Change-Id: I9a574b92a8396d2fda493d8dfa1261ddccc4ad02
Also adds transifex client configuration and a shortcut in the
run_tests script to compile the message files for Django's
use.
Fixes bug 1050807.
Change-Id: Ic3d7b73d0b7ad0fcb5841a6ac90a2a21653d05be