Updated from global requirements

Change-Id: I4055698d0e4492a17623836e802ac56cd869ab0a

Author: OpenStack Proposal Bot

requirements.txt

@@ -17,4 +17,4 @@ python-novaclient>=2.22.0
 python-cinderclient>=1.2.1
 python-neutronclient>=2.3.11,<3
 requests>=2.5.2
-stevedore>=1.3.0  # Apache-2.0
+stevedore>=1.5.0  # Apache-2.0