Devref Update: Transition to OpenStack Client
Devref Update: Transition to OpenStack Client

Update the "Transition to OpenStack Client" devref with information
about the new OSC command specs process. This process can be used
to propose new networking commands while deferring their
implementation. This process may help speed the overall transition
to OSC.

This update also includes information about the OSC neutron support
etherpad which provides detailed status for the transition.

And finally, updates were made to the overall transition plan
based on discussions at the midcycle.

Change-Id: I46bc066d2169a1e20af13baac7131ffa2eedd7c8
Related-Bug: #1521291

Juniper/python-neutronclient,openstack/python-neutronclient,openstack/python-neutronclient,eayunstack/python-neutronclient,huntxu/python-neutronclient,noironetworks/python-neutronclient,rackerlabs/rackspace-python-neutronclient,huntxu/python-neutronclient,eayunstack/python-neutronclient,noironetworks/python-neutronclient,rackerlabs/rackspace-python-neutronclient,Juniper/python-neutronclient