Include new neutron during shutdown
Include new neutron during shutdown

In stable/newton some of the functions are renamed to help with the
neutron devstack refactoring. This means we need to optionally include
the lib/neutron to get the stop function.

Change-Id: Ied33f52bb0e3265a2ca4fcf76658f1b5c373cd07

openstack-dev/grenade,openstack-dev/grenade