Open Stack

Hi,

I think horizon will be very attractive to Django developers if we
separate it from openstack_dashboard.

Is it the time to do it?

I found it's pretty easy to use the horizon app in a standard Django
project and it just works.

Current issues:

* Some places still tight to OpenStack.
* It pulls all the OpenStack related dependencies, e.g., the client
api modules, openstack_auth, etc.
* The test cases.

Thanks,

Zhigang