Add more patches to make neutron work with the RUG

DHC-2540

* Restore some API methods signature
* Fix neutron-to-nova notification for created ports

Change-Id: I576451428734e6e17fa118500d4908f97ed274b9
Signed-off-by: Rosario Di Somma <rosario.disomma@dreamhost.com>
Merge pull request #6 from rodis/fix/patch_icehouse_neutron

Add more patches to make neutron work with the RUG