Fixed #11585 -- Added ability to translate and prefix URL patterns with a language code as an alternative method for language discovery. Many thanks to Orne Brocaar for his initial work and Carl Meyer for feedback.

      git-svn-id: http://code.djangoproject.com/svn/django/trunk@16405 bcc190cf-cafb-0310-a4f2-bffc1f526a37