Support new osprofiler API
Support new osprofiler API

Notifier initialization moved to osprofiler. Added call
to init_from_conf method that does it.

Change-Id: I7cba52f9a6c8f4b8a9714382169cee15fb38a58a
Depends-On: I77d0d3b5e9e725507916724dcd28d5fbc6f7f5c7

openstack/keystone,rajalokan/keystone,ilay09/keystone,ilay09/keystone,rajalokan/keystone,openstack/keystone,mahak/keystone,mahak/keystone,openstack/keystone,mahak/keystone,ilay09/keystone,rajalokan/keystone