Error while neutron startup
Error while neutron startup

The import of log from neutron.openstack.common does not exists.
Also, ContextAdapter class has been removed. Its functionality
is moving into ContextFormatter. This commit just fixes the neutron
start up issue. No change made in init_fip_rate_log() where the
ContextAdapter is used.

Change-Id: I5f63561ba47d3011e468de03946687966a7e0ab4
Closes-Bug: Openstack-9999

naveensan1/nuage-openstack-neutron,nuagenetworks/nuage-openstack-neutron,nuagenetworks/nuage-openstack-neutron,naveensan1/nuage-openstack-neutron