Leverage openstack.common.importutils for import_class

This patch drops the import_utils method from common.utils and leverages
it from openstack.common.importutils instead.

Change-Id: If7e7383aa742afe44f750f916c0d90d747793150
Closes-bug: 1365273
Unordered dicts and lists causes variable results

The unordered dict and lists causes variable results.  The user
may see different results and tests can fail.  Might as well make
this more consistent.

Change-Id: I7045b40b44cbf3ee0f2ca79c6ea0d279b6d8cfe3
Add action 'user password set' for identiy v3

This new action will allow a user to change their own password by
either providing the new password as an argument (--password) or by
being prompted to enter the new password.
In both cases user will be prompted to enter their current password
as required by the v3 API.

Closes-Bug: #1337245
Change-Id: I5e1e0fd2b46a4502318da57f7cce2b236fb2d93d
Merge "Leverage openstack.common.importutils for import_class"
Merge "Unordered dicts and lists causes variable results"
Merge "Add action 'user password set' for identiy v3"