DEBUG output.  DO NOT cherry-pick this
FIX for nova-network interface creation. DO NOT MERGE, Bogdan merge it
FIX: create predefined networks.

Puppet resources 'tupe' must have :ensure parameter if type ensurable.
FIX: lost bridge_mappings for GRE segmentation
FIX: losted auth url
FIX order for creating networks, subnets and routers
FIX: segm.IDs and vlan_ranges for GRE ang flat
FIX: nameservers and enable_dhcp while creating subnet