Removed gbp dfsg filtering
Updated upstart files to reflect latest ubuntu versions

The versions here were causing hangs and lockups on restart of the
minion or master.

The following issues seem to be related:

- https://github.com/saltstack/salt-bootstrap/issues/263
- https://github.com/saltstack/salt/issues/2166
- https://bugs.launchpad.net/ubuntu/+source/salt/+bug/1250208