Update to the new Havana Openstack location name.

* Name changed per Edwin's request.

	modified:   scripts/import_users_from_euca.py
Update to the new Havana Openstack location name.

* Part deux.

	modified:   scripts/import_core_services.py
Merge branch 'stable' of github.com:iPlantCollaborativeOpenSource/atmosphere

Conflicts:
	scripts/import_core_services.py
Change prepare_driver to use get_esh_driver instead of DriverManager.
	modified:   api/__init__.py
Merge branch 'master' of https://github.com/iPlantCollaborativeOpenSource/atmosphere into stable
Merge branch 'stable' of https://github.com/iPlantCollaborativeOpenSource/atmosphere into stable
Small changes to production from Feb 4 and Feb 5.
	modified:   api/__init__.py
	modified:   scripts/migrate_images.py
	modified:   service/tasks/volume.py
	modified:   templates/application/login.html