Fixed #18040 -- Removed so-called project-level locale trees from the list of paths the translation loading process takes in account.

Deprecated in Django 1.3. Removed completely for Django 1.5.

Thanks Claude for the review.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@17861 bcc190cf-cafb-0310-a4f2-bffc1f526a37