Support for 'none' in orchestration model.
If orchestration model is set to 'none', then authenticatation is bypassed to
login to UI, but the userid/passwd set in default.config.global.js needed to
login, default role is admin for this user.

When set 'none', then the project list comes from API Server irrespective of
config.getDomainProjectsFromApiServer value.

The pages which needs to be interacted with openstack modules, gets loaded, but
config can not be done.

Change-Id: Ib1fed887b716fbf3418aaf5801a6ea7420c097ca