Update config templates for Juno release
Adjust default number of worker processes

Handle this similar to how we handle it for all the other services.
Remove uneeded lbaas items from the quota_items

It's no longer needed to list the lbaas items there. They are registered
automatically nowadays.
(See: https://bugs.launchpad.net/neutron/+bug/1305957)
Merge pull request #168 from rhafer/juno-conf

Update config templates for Juno release