Fixed #18037 -- Changed behaviour of url and ssi template tags to the new...

Fixed #18037 -- Changed behaviour of url and ssi template tags to the new syntax, as per official deprecation timeline. Thanks Ramiro Morales and Jannis Leidel for the review.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@17934 bcc190cf-cafb-0310-a4f2-bffc1f526a37