Updated from global requirements

Change-Id: I3430eea5b97057caad6d211885e1402bec7c1a01

Author: OpenStack Proposal Bot

test-requirements.txt

@@ -16,7 +16,7 @@ os-testr>=0.4.1
 testrepository>=0.0.18
 testtools>=1.4.0
 WebOb>=1.2.3
-tempest-lib>=0.12.0
+tempest-lib>=0.13.0
 
 # Install these to generate sphinx autodocs
 python-barbicanclient>=3.3.0