Merge remote-tracking branch 'origin/master' into remoteapiGetversions

_test/tests/inc/form/dropdownelement.test.php

_test/tests/inc/pageutils_clean_id.test.php

_test/tests/inc/pageutils_wikiFN.test.php

inc/Form/CheckableElement.php

inc/Form/DropdownElement.php

inc/Form/Element.php

inc/Form/Form.php

inc/Form/TagCloseElement.php

inc/Form/ValueElement.php

inc/config_cascade.php

inc/lang/fi/lang.php

inc/lang/hr/lang.php

inc/lang/ko/admin.txt

inc/load.php

inc/pageutils.php

inc/parser/xhtml.php

lib/exe/js.php

lib/exe/mediamanager.php

lib/plugins/authad/adLDAP/classes/adLDAPUtils.php

lib/plugins/authad/lang/fi/lang.php