Purge cloud-init

Turns out that cloud-init leaves behind init scripts which still try
to do things, because they have lots of logic written in them. That's,
of course, crazy. In any case, purge to get rid of them.

Change-Id: Id32fe2eb0f0af879d69055dc7894acbe507f0513

modules/openstack_project/manifests/single_use_slave.pp

@@ -54,7 +54,7 @@ class openstack_project::single_use_slave (
   }
 
   package { 'cloud-init':
-    ensure => 'absent',
+    ensure => 'purged',
   }
 
 }