Remove badges and news apps, and reset migrations for banners and links.

Once on this commit, you will have to migrate both the links and banners
apps back down to 0001, using the --fake flag to avoid making actual
database changes, and the --delete-ghost-migrations flag to delete the
leftover migrations that get deleted.
Remove temporary commands for resetting DB migrations in apps.
Fix deploy script to not require input.
Remove django-moz-header submodules.
Remove unused static files and move remained to Facebook app.
Update to latest jingo-minify.
Remove unused templates and fixtures.
Remove unused code from shared app, and fix tests.
Remove shared app and move leftovers to base app.
Update affiliates.shared imports to affiliates.base.
Fix various issues around setting up a new dev instance of the site.

- Add registration to JINGO_EXCLUDE_APPS to prevent admin logout
  template from being rendered by Jinja.

- Update signal for default permissions to abort if the
  can_share_website permission doesn't exist yet, which occurs when
  creating an admin during the initial syncdb. Also adds tests for this
  signal.

- Update install docs to have correct paths.

- Remove FacebookDebugMiddleware; Facebook app testing can be done with
  a test app, and it causes import issues.

- Add Facebook app settings for tests.
Remove django-browserid submodule.
Install latest django-browserid.
Configure site for django-browserid, add placeholder login button.
Add dashboard, category list, and banner list views.
Clean up base/tests/__init__.py and tests relying on it a bit.
Add tests for banner views and landing/dashboard views.

Also tweak tests for 404 and 500 views to be more isolated.
Point LOGIN_URL to the homepage temporarily.
Install django-braces.
Add image banner customization view and frontend.