Refs #2920 -- Replaced implicit uses of _() with explicit imports or calls to gettext(). At some point post 0.96, we need to remove the calls that put _ into the builtins.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@4485 bcc190cf-cafb-0310-a4f2-bffc1f526a37