Refs #1400 -- Variable resolver now converts literal strings 'False' and...

Refs #1400 -- Variable resolver now converts literal strings 'False' and 'True' into booleans when used as template arguments. This is point 2 from ticket #1400. Thanks Kieren Holland.


git-svn-id: http://code.djangoproject.com/svn/django/trunk@3269 bcc190cf-cafb-0310-a4f2-bffc1f526a37