Install latest octavia client for setupOpenstackVirtualenv

Since we have working Lbaas on cloud, we definitely need this client by
default
us: https://mirantis.jira.com/browse/MAP-266
Change-Id: Ibea889eb822f2ed1112b48ff0ced29c404842d69
diff --git a/src/com/mirantis/mk/Openstack.groovy b/src/com/mirantis/mk/Openstack.groovy
index 82fd895..af697da 100644
--- a/src/com/mirantis/mk/Openstack.groovy
+++ b/src/com/mirantis/mk/Openstack.groovy
@@ -55,6 +55,7 @@
         'cmd2>=0.9.1;python_version=="3.4"',
         'cmd2>=0.9.1;python_version=="3.5"',
         'python-openstackclient',
+        'python-octaviaclient',
         'python-heatclient',
         'docutils'
     ]