Emilien Macchi 1f051ca9b7 use stevedore names when possible and cleanup ldap testing
Instead of using long backend/drivers name, use short name and stevedore
will load plugins for us.

It will prevent this kind of message in logs:
Failed to load 'keystone.catalog.backends.sql.Catalog' using stevedore:
No 'keystone.catalog' driver found,

Also cleanup unit and functional tests that were setting wrong
credential & assignment drivers.

Change-Id: Id3b8ed63ef9a821eba5374af7ed0fd1c8d755e09
2016-02-29 09:26:13 -05:00
..