Added integration test base class

Move all test cases that use LDAP over to the new integration testing
base class.  Removed static configuration of a testing LDAP server.

Any tests that were running with an LDAP server but not checking the
values in LDAP are no longer running an LDAP server.

Change-Id: Ibc3fb16c7588e013d0c37f455c98c4588ea2152e