Merge pull request #55 from VictorLowther/pull-req-master-07cd2da2c693f3f87b4152996b7da62491f566ac

Make more progress in having the admin node bootstrap itself. [2/2]
Bump Chef to Chef 11.
Fix up jigs section in the Chef barclamp to declare the jig this
barclamp implements.
Update the chef-server's on_active role to account for an
already-created chef jig.
Flatten
Zap connection injector.
Fix thinko.
Add back chef gem, restrict to >= 11.6 for now.
Flatten
Try doing something vaguely sane for the chef jig.
Add back Chef gem.
Add a dep on the CHef gems.
Flatten
Flatten