Fixed #6550 - Changed generic view portion of the tutorial so it's equivalent...

Fixed #6550 - Changed generic view portion of the tutorial so it's equivalent to "the hard way" results. Thanks Alexandre Dupas for the suggestion.

git-svn-id: http://code.djangoproject.com/svn/django/trunk@15068 bcc190cf-cafb-0310-a4f2-bffc1f526a37