deprecate v2.0 API in multiple choice response

Change-Id: I7d6f4056e1451062fdffe1cce209a47689ea5271
Implements: bp deprecated-as-of-icehouse
Modified keystone endpoint-create default region

The default region is changed from regionOne
to RegionOne

Change-Id: I610174f7c4241ce7405f100e775fd03df676eeac
Closes-Bug: #1252299
Removes duplicate key from test fixtures

Change-Id: I507f880b96dae212da1d464fc70fcb3835c3460a
Removes useless string

Change-Id: Ia19078f6fd3cd2cd0942da10dadf63be8eaef3c8
Merge "Modified keystone endpoint-create default region"
Merge "deprecate v2.0 API in multiple choice response"
Merge "Removes useless string"
Merge "Removes duplicate key from test fixtures"