Consume Ratings provided my server, and post back ratings

assigning to myself

Here is an initial patch that has viewing of ratings only - it doesn't allow a client site to vote.

I made quite a few cleanup changes to the theming system for apps, so I wanted to put a patch up that is basically only theming so these can be easily reviewed.

Note there is a new image in this patch, which is basically just the stars but grey.

Here is a new patch with full functionality.

The basic workflow is like so:

• User sees ratings and rating count on teaser view (as always except with real data).
• Once the user goes to the detail page, and can vote and see their previous ratings for an app (if they've voted before).
• Voting records the vote and updates the site via ajax.

There is a configuration option to turn off voting, which will allow the users to see the rating, but not to vote.

Generally however, to make use of this functionality, the appserver which each app console points to much also have the associated functionality (as provided in the patch in the linked issue).

I've also attached a screenshot of how the widget looks.

Committed a cleaned up version to 7.x-1.x so we can get some feedback on how its working. Suggest updating to the voting branch of appserver.

Please put bugs found in new issues so we can deal with them separately.