MDL-20636 Boilerplate and other cleanup in the question core code.

This includes converting behaviours to pluginname strings.

question/flags.js

@@ -1,5 +1,29 @@
-// This script, and the YUI libraries that it needs, are inluded by
-// the $PAGE->requires->js calls in question_get_html_head_contributions in lib/questionlib.php.
+// This file is part of Moodle - http://moodle.org/
+//
+// Moodle is free software: you can redistribute it and/or modify
+// it under the terms of the GNU General Public License as published by
+// the Free Software Foundation, either version 3 of the License, or
+// (at your option) any later version.
+//
+// Moodle is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+// GNU General Public License for more details.
+//
+// You should have received a copy of the GNU General Public License
+// along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
+
+/**
+ * JavaScript library for dealing with the question flags.
+ *
+ * This script, and the YUI libraries that it needs, are inluded by
+ * the $PAGE->requires->js calls in question_get_html_head_contributions in lib/questionlib.php.
+ *
+ * @package    moodlecore
+ * @subpackage questionengine
+ * @copyright  2010 The Open University
+ * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
 
 M.core_question_flags = {
     flagattributes: null,