ldap was accidentally supplying some of its own values rather than using
the built-in fixtures, so it was providing the incorrect interface for a
couple calls.
also adds a test for get_user_by_name (skipped for ldap) and
standardizes the kvs and ldap authenticate calls
fix user authentication live ldap tests
Change-Id: If1ccce1fd9c84622bb89344bc5d5c59b059d03ae
Bug 933852
Merged over the code from the legacy keystone implementation, updated
style and streamlined the API a bit.
* Unit tests can be run against a live OpenLDAP server
* Password hashing done via passlib. Only does salted sha1, which is what simple_bind requires, but is not secure.
* Added pip dependencies
Change-Id: I5296d94f6b7d0a7c7dbc887cdae872171e34bb5f
