Log Message:
Update to cgit-1.1.
Changes include:

* Single-child trees are now elided into single links. Instead of having to
  click through depths of links, now a single link will to to the maximum
  point of depth.

* Continuing our commitment to supporting kernel.org, we've adopted some of
  their style changes in our CSS, now allowing for colored even/odd table rows
  with a nice hover effect.

* Snapshot name prettification is now consistent, so that the 'v' prefix
  stripping only occurs when it won't create any collisions. This is a slight
  change of behavior, but I imagine cases of folks relying on the old broken
  behavior are few and far between.

* We now use Git 2.10.2 internally, which has brought with it numerous
  cleanups and a gradual shift away from 20 byte uchar arrays and toward the
  newer "object_id" structure.