Prepare the final stable/ussuri release

Change-Id: If9330f7191e650a67c87cfbbec073c31098f282c

metadata.json

@@ -7,7 +7,7 @@
         },
         {
             "name": "openstack/keystone",
-            "version_requirement": ">=16.3.0 <17.0.0"
+            "version_requirement": ">=16.4.0 <17.0.0"
         },
         {
             "name": "puppet/rabbitmq",
@@ -27,11 +27,11 @@
         },
         {
             "name": "openstack/openstacklib",
-            "version_requirement": ">=16.3.0 <17.0.0"
+            "version_requirement": ">=16.4.0 <17.0.0"
         },
         {
             "name": "openstack/oslo",
-            "version_requirement": ">=16.3.0 <17.0.0"
+            "version_requirement": ">=16.4.0 <17.0.0"
         },
         {
             "name": "antonlindstrom/powerdns",
@@ -83,5 +83,5 @@
     ],
     "source": "git://github.com/openstack/puppet-designate.git",
     "summary": "Puppet module for OpenStack Designate",
-    "version": "16.3.0"
+    "version": "16.4.0"
 }