Merge pull request #27 from crazymac/master

Final clean-up steps.
Finish refactoring for horizon merge.
Git rid of logging handling.

This is better handled with the LOGGING settings in local_settings.
Fixing the backup update row ajax call.
Remove flavor info from backups details page.
Adding a hook to disable user and database tabs/forms.
Fixing pep8 issues and logging cleanup.
Fixing dependencies, adding context checkouts stuff.
PEP8 tests fix