Update requirements.txt and test-requirements.txt from Global Requirements defined into openstack/requirements project (stable/liberty). Change-Id: I9ecbf5a7fb2c38624cc4f52b13515f8af75a4889 Closes-Bug: #1513118
Change-Id: I5fc4b3e8193232379a6aa2b6cc4ef6457f0a6ef1
Change-Id: I699e0ab082657880998d8618fe29eb7f56c6c661