Update to match the new refstack-client project structure.
Update to match the new refstack-client project structure.

Update README.rst to match the new project structure.  Also add
the --offline option.

Change-Id: I3d17ae635d4d71cc33dc6f0953bfb0372b3d751c

openstack/refstack-client,stackforge/refstack-client,stackforge/refstack-client,openstack/refstack-client