Use force when purging

* modules/asterisk/manifests/init.pp
* modules/jenkins/manifests/master.pp
* modules/jenkins/manifests/slave.pp
* modules/openstack_project/manifests/gerrit.pp
* modules/openstack_project/manifests/jenkins.pp
* modules/openstack_project/manifests/nodepool.pp
* modules/openstack_project/manifests/static.pp: When a directory is
puppet-managed for content using recurse, replace and purge you also
need force or empty subdirectories will fail to be removed. What's
worse, subscribing to that directory will cause a refresh to be
triggered for it on every agent run.

Change-Id: I232d6ba98475522f391f469c194a4450c7a0b2e1
Merge "Use force when purging"