Resolves Flatpages test issues by:
- Creating an example_site fixture
- Overriding project SITE_ID setting to 1
- Normalizing the use of the hardcoded (1) site_id to settings.SITE_ID
The FlatpageFallbackMiddleware (and the view) now only add a trailing slash and redirect if the resulting URL refers to an existing flatpage. Previously requesting /notaflatpageoravalidurl would redirect to /notaflatpageoravalidurl/, which would then raise a 404. Requesting /notaflatpageoravalidurl now will immediately raise a 404. Also, Redirects returned by flatpages are now permanent (301 status code) to match the behaviour of the CommonMiddleware.
Thanks to Steve Losh for the initial work on the patch.
git-svn-id: http://code.djangoproject.com/svn/django/trunk@16048 bcc190cf-cafb-0310-a4f2-bffc1f526a37