Update process for adding interfaces with -I command
fix puppet\openstack_builder puppet_openstack_builder
Fix set to capture just the interface id.
data mapping needs the root physical_interface_mappings
fix jopenstack -> openstack
Change the MTU to only set on -E interface and update help
Address X from ethX in user.yaml config
Update test scripts for vlannet
Fix vxb->vxc in test delete
Merge pull request #5 from onecloud/change_interface_mapping

Add ability to include additional interfaces into neutron config, and restrict MTU config to single "external" interface