Fixed #15900 -- Calls to reverse with nested namespaced urls are escaped...

Fixed #15900 -- Calls to reverse with nested namespaced urls are escaped properly and capture parameters as expected.

Thanks to teolicy for the report, and dmclain for the patch.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@17251 bcc190cf-cafb-0310-a4f2-bffc1f526a37