Bug #1195312 Enable quantum security groups

For quantum security groups, we need to switch to the libvirt_vif
LibvirtHybridOVSBridgeDriver and set the firewall_driver in the
ovs_quantum_plugin
Expose libvirt_vif knob at top level manifest
site_index class missing from build node

Add the site_index class back on the build node so a basic web site
will get properly created
Add puppet-coe module

Add back the puppet-coe module to include Cisco-specific custom
classes
Load class to disable unwanted quantum logging

Disable unwanted quantum rootwrap logs by default. Users can override if
desired.
Merge pull request #92 from rickerc/fix_security_groups

Bug #1195312 Enable quantum security groups
Merge pull request #97 from rickerc/quantum_logging

Quantum logging