[1.3.X] Fixed #15698 -- Fixed inconsistant handling of context_object_name in...

[1.3.X] Fixed #15698 -- Fixed inconsistant handling of context_object_name in paginated MultipleObjectMixin views. Thanks, Dave Hall.

Backport from trunk (r16079).

git-svn-id: http://code.djangoproject.com/svn/django/branches/releases/1.3.X@16080 bcc190cf-cafb-0310-a4f2-bffc1f526a37