Updated from global requirements

Change-Id: Ic90d9682a9c15795928c0c5b64c41bd06d74243a

Author: OpenStack Jenkins

requirements.txt

@@ -4,7 +4,7 @@ keyring>=1.6.1,<2.0,>=2.1
 pycrypto>=2.6
 python-glanceclient>=0.9.0
 python-keystoneclient>=0.6.0
-python-novaclient>=2.15.0
+python-novaclient>=2.16.0
 python-cinderclient>=1.0.6
 requests>=1.1
-six>=1.4.1
+six>=1.5.2