Updated openstack/openstack
Project: openstack/nova  256dead62b085a0e06c11cf12ed00047e2211160

Modify v21 alias name for compatible with v2

This patch changes some of the alias names to be compatible with v2.
so the extension info output will be as same with v2.
 consoles -> os-consoles
 flavor-extra-specs -> os-flavor-extra-specs
 flavor-manage -> os-flavor-manage

Partially implements blueprint v2-on-v3-api

Change-Id: Ia8c6a0144e43134667636db9ba862b26f265a433