-  [hal_json] distinguishes between REQUEST.form and REQUEST.other
-  [hal_json] byteify all keys and values before putting them into REQUEST
-  [renderjs_ui] dialog does not go to parent when validation fails
-  [hal_json] does not crash on direct traverse of a Script instead of a Dialog
-  [renderjs_ui_test] move the logging-out test to its isolated zuite so it does not cause problems