This patch changes 'image_ref'/'flavor_ref' to 'imageRef'/'flavorRef'
that same with v2 api. And also change the related unittest.
The differences between v2 and v3 are described on the wiki page
https://wiki.openstack.org/wiki/NovaAPIv2tov3.
Partially implements blueprint v2-on-v3-api
Change-Id: Ic17334e0a9de89488d5e0c8b75950027d51a3cd4
Moves the pause/unpause server functionality out of admin_actions into
its own extension. This part of the blueprint v3-api-admin-actions-split
allows more selective enablement of features contained in the admin
actions extension.
Note that XML api samples are no longer generated because
bp remove-v3-xml-api has been approved.
Partially implements bp v3-api-admin-actions-split
DocImpact: Adds os-pause-server extension and moves pause/unpause
functionality out of os-admin-actions into this new extension
Change-Id: Ib9cce57e2ff1270a82b9d7e39b23ec6b532b9e77
He Jie Xu