Update rabbit/quantum user/pass, remove unused variables

Site.pp.example has a variable for rabbit, but core.pp was
using fixed names, causing potential build failures.  fixed
openstack_rabbit_user to be consistent for quantum uses.
Also changed the quantum queue to '/' as with the rest of the
services.  Cleaned up modules as well, added the missing boolean
module.

Also removed a few historical (nova-network related) variables
from site.pp.example.
Update readme with directions
Update branch name
Redefine network_config for controller partial: 1086246

Added more complete network_config statements for the control node.  None for the
compute node(s).  This supports part of the "different network" requirement listed
in https://bugs.launchpad.net/openstack-cisco/folsom/+bug/1086246
Reset modules.list

Include network, filemanager, boolean
Merge pull request #31 from robertstarmer/multi-node

Update rabbit/quantum user/pass, variables(1087359,1090422,1090338)