Show more informative instance status

Nova's api will return a status and a task state, such as:

	RESIZE (resize_verify)

This change makes OpenStackManager show both. It also makes the
api action properly return the new instance state after the JS
module makes a reboot call.

Change-Id: I239045ed658968356e7450fd79bfe06333e55838
Merge "Show more informative instance status"