WFLY-2860 adding regression tests for WFLY-2319

The test method org.jboss.as.test.integration.naming.ldap.LdapUrlInSearchBaseTestCase.testLdap() is ignored, because of a new issue introduced by original fix for WFLY-2319 (cf https://bugzilla.redhat.com/show_bug.cgi?id=1060275)

The second test method - testDir() - should pass.