more template syntax fixes

really? more?
updated messaging to django.contrib.messages

"The Message model (in django.contrib.auth), its related manager in the
User model (user.message_set), and the associated methods
(user.message_set.create() and user.get_and_delete_messages()), will be
removed [in Django 1.4]. The messages framework should be used instead.
The related messages variable returned by the auth context processor
will also be removed. Note that this means that the admin application
will depend on the messages context processor." -
https://docs.djangoproject.com/en/1.4/internals/deprecation/
more template syntax fixes
fixed errors in presentation/views

I typed a better message but github for mac is stupid and apparently
makes it easy to delete your current commit message if you accidentally
brush the wrong key on your keyboard. Featuriffic!

here was the error:
ERROR:django.request:Internal Server Error: /presentation/browse/
Traceback (most recent call last):
  File "django/core/handlers/base.py", line 112, in get_response
    response = wrapped_callback(request, *callback_args,
**callback_kwargs)
  File "rooibos/presentation/views.py", line 313, in browse
    where=('%s=%s' % (col(OwnedWrapper, 'object_id'), col(Presentation,
'id')),
  File "rooibos/presentation/views.py", line 307, in col
    qn = backend.DatabaseOperations().quote_name
TypeError: __init__() takes exactly 2 arguments (1 given)
m..e.t.mpl.....ynt.x....ng..

"blerg!" -Tina Fey on '30 Rock'