Added docutils to openstack client deps

Change-Id: Ibb132c243f1420d0bf2738710c269584226f7084
diff --git a/src/com/mirantis/mk/Openstack.groovy b/src/com/mirantis/mk/Openstack.groovy
index 1e419b3..87c11eb 100644
--- a/src/com/mirantis/mk/Openstack.groovy
+++ b/src/com/mirantis/mk/Openstack.groovy
@@ -39,11 +39,13 @@
         'oslo.i18n>=2.3.0,<2.4.0',
         'oslo.serialization>=1.8.0,<1.9.0',
         'oslo.utils>=1.4.0,<1.5.0',
+        'docutils'
     ]
 
     def openstack_latest_packages = [
         'python-openstackclient',
         'python-heatclient',
+        'docutils'
     ]
 
     if (version == 'kilo') {