Support LBaaS v1

Conflicts:
	openstack-neutron/src/main/java/org/jclouds/openstack/neutron/v2/config/NeutronHttpApiModule.java
	openstack-neutron/src/main/java/org/jclouds/openstack/neutron/v2/extensions/ExtensionNamespaces.java
Ports the Neutron LBaaS PR to 1.8.x and java 1.6