Updated openstack/openstack
Project: openstack/taskflow  5a0fbff76da28c2a63fa18f967dad06ed696affd

Refactor parts of the job lock/job condition zookeeper usage

This reduces the necessary locks to operations which really only
need to be locked, removing some of the ones which are not needed
around read only operations or operations which are thread safe
when used with dictionaries (popping a single item for example)
or checking if a *string* key is in a dictionary, or fetching a
dictionaries length...

Change-Id: I28a9d66afa7f7b733b2963b8cee3edd45696561b