Ensure yum-cron is running

Ensure the service is running so we get automatic updatesx

Change-Id: I9bf7f23ad5fb52488330b082de6f6ad6d4643177

modules/openstack_project/manifests/server.pp

@@ -158,6 +158,7 @@ class openstack_project::server (
     }
     service { 'yum-cron':
       enable  => true,
+      ensure  => running,
       require => Package['yum-cron'],
     }
   }