Fixed #15837. Consolidated all the locaflavor tests into a single, logical,...

Fixed #15837. Consolidated all the locaflavor tests into a single, logical, place (regressiontests/localflavor/).

git-svn-id: http://code.djangoproject.com/svn/django/trunk@16680 bcc190cf-cafb-0310-a4f2-bffc1f526a37