The cloudcafe tests create load balancers which may not get cleaned up, and there is a hard limit to the number of load balancers per account.  Add deleting load balancers to the cleanup job.
Merge pull request #761 from rackerlabs/delete_created_lbs_in_test

Add deleting created LBs to cloudcafe cleanup job
Merge branch 'master' into remove-from-lb-request-fn