Bug 10659: Upgrade jQuery star ratings plugin

Bug 10659: Upgrade jQuery star ratings plugin

This patch replaces our current jQuery star ratings plugin with a newer
plugin which will be compatible with newer versions of jQuery:

http://antenna.io/demo/jquery-bar-rating/examples/

To test you should have one or more records in your catalog with star
ratings.

- Apply the patch and set the OpacStarRatings system preference
  to "results and details"
- Perform a search in the catalog which will return one or more titles
  which have ratings.
  - Confirm that the ratings appear correctly and the ratings are
    read-only.
- Open the "normal" detail page for that record.
  - Confirm that the star rating appears correctly.
  - Test setting and re-setting your star rating. Confirm that it is
    saved.
  - Confirm that the "cancel rating" link appears when you have a rating
    set, and that it disappears after you click it.
- Test that the "only details" and disabled options of the
  OpacStarRatings preference work as they should.
- Confirm that information about the plugin appears on the About page in
  the staff client, replacing the old star ratings plugin information.

Signed-off-by: Pierre-Marc Thibault <pierre-marc.thibault@inLibro.com>

Signed-off-by: Nick Clemens <nick@bywatersolutions.com>