Added styling for the titleless access bucket. I had to insert a #name property for all the buckets in order to be able to target them through a class selector. (Acquia AN-23824, r24238)

Rewrite the Views contextual links implementation to fix a number of bugs and user experience issues, and to make it more flexible.

This patch is up for review at http://drupal.org/node/876772#comment-4125508 and could undergo changes as a result of that, but I am committing it
here so it we can test and develop against it.

Make the filter criteria groups display correctly, and consequently get rid of lots of PHP notices while we're at it.

AN-23163 - in order to prevent the progress spinner from slipping over to left of the individual setting rows in the views display buckets, we need to set the setting item labels and the setting item values to a block level (inline-block) and float them because the spinner itself is floated to the left.