xenapi - rename quantum to neutron
xenapi - rename quantum to neutron

Some changes were missing from the previous rename patch, so it broke
XenServer support. This patch contains the missing adjustments.

related to blueprint remove-use-of-quantum

Change-Id: I1ee5cc38d555bd5c26edf00a456ec71919604d79

yamt/networking-ofagent-old3,budnyjj/ofagent,budnyjj/ofagent,yamt/networking-ofagent