Fixed #17135 -- Made it possible to use decorators (like stringfilter) on...

Fixed #17135 -- Made it possible to use decorators (like stringfilter) on template filter functions in combination with auto-escaping. Refs #16726.



git-svn-id: http://code.djangoproject.com/svn/django/trunk@17056 bcc190cf-cafb-0310-a4f2-bffc1f526a37