Set the static url to /pulp/assets

Foreman uses the top level /assets and this doesn't interfere with
Pulp's operation.

Author: ekohl

manifests/init.pp

@@ -361,6 +361,7 @@
       apache_https_vhost        => $apache_https_vhost,
       apache_vhost_priority     => $priority,
       servername                => $servername,
+      static_url                => '/pulp/assets',
       postgresql_manage_db      => $pulpcore_manage_postgresql,
       postgresql_db_host        => $pulpcore_postgresql_host,
       postgresql_db_port        => $pulpcore_postgresql_port,