forum MDL-21086 cleaned up boilderplates and php doc packages

mod/forum/mod_form.php

@@ -1,4 +1,26 @@
 <?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/>.
+
+/**
+ * @package mod-forum
+ * @copyright Jamie Pratt <me@jamiep.org>
+ * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
+ */
+
 require_once ($CFG->dirroot.'/course/moodleform_mod.php');
 
 class mod_forum_mod_form extends moodleform_mod {