Updated openstack/openstack
Project: openstack/keystone  f2b62bd05d501c60a586469e10ac4a530651566d
null
Fix create_region_with_id raise 500 Error bug

1. add sql.handle_conflicts wrapper in sql backend driver.
2. check duplicate region id in kvs backend driver.
3. add 2 test cases to check exception.Conflict when create duplicate id region.

Closes-Bug: #1283904

Change-Id: Icfc5edf661501a5c134f324a76824812dbda2760