CSS cleanups
Fix RTL style
Added user FK to rating model, and allow authenticated users to edit their ratings. Added new setting RATINGS_ACCOUNT_REQUIRED to allow ratings to behave like comments, where requiring authentication can store post data in session until user logs in to complete the rating.
Merge
If RichTextPage is unregistered in the admin, have the page add link in the dashboard go to the page tree.
Merge
Let's go back to a fixed-width navbar.