Ensure that the neutron server is properly monkey patched

The legacy 'quantum-server' script will apply the eventlet
monkey patch whereas the new 'neutron-server' entry point
does not.  This prevents the server from properly handling
the REST interface.

Fixes bug #1199383

Change-Id: I498d2b02e6018425fc4538eff6803df8971f8e82
Merge "Ensure that the neutron server is properly monkey patched"