Merge pull request #4815 from owncloud/ldap_improve_testing

apps/user_ldap/ajax/getConfiguration.php

apps/user_ldap/ajax/setConfiguration.php

apps/user_ldap/ajax/testConfiguration.php

apps/user_ldap/appinfo/app.php

apps/user_ldap/group_ldap.php

apps/user_ldap/group_proxy.php

apps/user_ldap/lib/access.php

apps/user_ldap/lib/backendutility.php

apps/user_ldap/lib/connection.php

apps/user_ldap/lib/ildapwrapper.php

apps/user_ldap/lib/jobs.php

apps/user_ldap/lib/ldap.php

apps/user_ldap/lib/ldaputility.php

apps/user_ldap/lib/proxy.php

apps/user_ldap/settings.php

apps/user_ldap/tests/group_ldap.php

apps/user_ldap/tests/user_ldap.php

apps/user_ldap/user_ldap.php

apps/user_ldap/user_proxy.php