Updates locales from Transifex.

[BertrandBordage]

@digi604 And I found a problem: when you update Transifex, you are uploading a manually updated file for each language, aren't you? And you take these files in the github repository instead of Transifex? By doing so, you overwrite the most recent changes made on Transifex.

The perfect solution to this problem is to ask Transifex to update the locales automatically from the source locale (english) that can be found on github. I'd be glad if you could do it…

To do so:

• in https://www.transifex.com/projects/p/django-cms/resource/core/edit/, check what says "source file automatically updated" (or something like that, it's in french for me)
• on this same page, put this URL: https://raw.github.com/divio/django-cms/master/cms/locale/en/LC_MESSAGES/django.po
• do the same thing for "javascript".