Fixed #5978 -- Gave `LOCALE_PATHS` a default setting of an empty tuple and...

Fixed #5978 -- Gave `LOCALE_PATHS` a default setting of an empty tuple and removed some code that was checking for its existance in settings before accessing it.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@6701 bcc190cf-cafb-0310-a4f2-bffc1f526a37