This was a big commit! I included lots of documentation below, but generally I

This was a big commit! I included lots of documentation below, but generally I
did a few things. I wrote many many many new tests, either in old test files or
in the three new test files I made. I also did some code-keeping work, deleting
trailing whitespace and deleting vestigial code. Lastly, I fixed the parts of
the code which I realized were broken thru the process of running tests.

===============================================================================
 Deleted trailing whitespace:
===============================================================================
--\  mediagoblin/decorators.py
--\  mediagoblin/auth/tools.py
--\  mediagoblin/db/migrations.py
--\  mediagoblin/db/models.py
--\  mediagoblin/gmg_commands/users.py
--\  mediagoblin/moderation/forms.py
--\  mediagoblin/moderation/tools.py
--\  mediagoblin/moderation/views.py
--\  mediagoblin/templates/mediagoblin/moderation/media_panel.html
--\  mediagoblin/templates/mediagoblin/moderation/report.html
--\  mediagoblin/templates/mediagoblin/moderation/report_panel.html
--\  mediagoblin/templates/mediagoblin/moderation/user.html
--\  mediagoblin/templates/mediagoblin/moderation/user_panel.html
--\  mediagoblin/templates/mediagoblin/user_pages/report.html
--\  mediagoblin/templates/mediagoblin/utils/report.html
--\  mediagoblin/user_pages/lib.py
--\  mediagoblin/user_pages/views.py
===============================================================================
 Deleted Vestigial Code
===============================================================================
--\  mediagoblin/db/util.py
--\  mediagoblin/tests/test_notifications.py
===============================================================================
 Modified the Code:
===============================================================================
--\  mediagoblin/moderation/tools.py
--| Encapsulated the code around giving/taking away privileges into two
  | funtions.

--\  mediagoblin/moderation/views.py
--| Imported and used the give/take away privilege functions
--| Replaced 'require_admin_or_moderator_login' with
  |'user_has_privilege(u"admin")' for adding/taking away privileges, only
  | admins are allowed to do this.

--\  mediagoblin/templates/mediagoblin/banned.html
--| Added relevant translation tags
--| Added ability to display indefinite banning

--\  mediagoblin/templates/mediagoblin/user_pages/media.html
--| Made sure the add comments button was only visible for users with the
  | `commenter` privilege

--\  mediagoblin/tests/test_submission.py
--| Paroneayea fixed a DetachedInstanceError I was having with the our_user
  | function

--\  mediagoblin/tests/tools.py
--| Added a fixture_add_comment_report function for testing.

--\  mediagoblin/tools/response.py
--| Fixed a minor error where a necessary return statement was missing
--| Fit the code within 80 columns

--\  mediagoblin/user_pages/views.py
--| Added a necessary decorator to ensure that only users with the 'commenter'
  | privilege can post comments
===============================================================================
 Wrote new tests for an old test file:
===============================================================================
--\  mediagoblin/tests/test_auth.py
--| Added a new test to make sure privilege granting on registration happens
  | correctly

--\  mediagoblin/tests/test_modelmethods.py*
--| Added a test to ensure the User method has_privilege works properly
===============================================================================
 Wrote entirely new files full of tests:
===============================================================================
--\  mediagoblin/tests/test_moderation.py
--\  mediagoblin/tests/test_privileges.py
--\  mediagoblin/tests/test_reporting.py
===============================================================================
===============================================================================
NOTE: Any files I've marked with a * in this commit report, were actually subm-
itted in my last commit. I made that committ to fix an error I was having, so
they weren't properly documented in that report.
===============================================================================
===============================================================================