Consolidated neutron and nova network controller.pp and compute.pp
  - Added $neutron to seeds.rb and params.pp
Fixed class name comment
Fixed another class name comment
Changed path for top level controller and compute classes
Neutron flag is false by default
Deleted nova_network and neutron hostgroups
Removed foo script
BZ #1033249 - enable new variable to be overridden.

https://bugzilla.redhat.com/show_bug.cgi?id=1033249

This makes all variables in our hostgroups have their override set to true.
If there is a value specified in seeds, that is set as well.
Merge pull request #62 from jguiditta/set_overrides

BZ #1033249 - enable new variable to be overridden.
Merge pull request #45 from gildub/deduplicate-neutron-nova_network

Deduplicated controller and compute classes definitions for neutron and nova_network