Fixed #11714 - Document a few of the i18n function that can be used outside...

Fixed #11714 - Document a few of the i18n function that can be used outside views and templates. Thanks, Jarek Zgoda and Ramiro Morales.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@12473 bcc190cf-cafb-0310-a4f2-bffc1f526a37