OpenStack library for all concurrency-related code

Jenkins b45840dc2c Merge "Log when release file lock"		2013-01-12 10:11:42 +00:00
openstack/common	Log when release file lock	2013-01-09 18:58:54 -08:00
tests/unit	Eliminate sleep in the lockutils test case (across processes)	2013-01-07 08:56:03 -05:00