trusttext:

* proposed by Martin Dougiamas
 * implemented by skodak

Usage:
1/ change enabletrusttext to yes in site settings (it is off by default) or set it in config.php
2/ assign moodle/site:trustcontent capability to users whose text submitted in glossary entries, comments, forum posts etc. should not be cleaned == they can use javascript or any other forbidden tags in glossary and forums...

done:
 * core
 * glossary (without proper upgrade)

to do:
 * data cleaning in upgrades
 * forum, blocks and some other places (MD decides)

admin/configvars.php

@@ -225,6 +225,9 @@ class configvarrss extends configvar {
     $permissions['allowobjectembed'] = new configvar (get_string('configallowobjectembed', 'admin'),
         choose_from_menu ($noyesoptions, 'allowobjectembed', $config->allowobjectembed, '', '', '', true) );
 
+/// enabletrusttext
+    $permissions['enabletrusttext'] = new configvar (get_string('configenabletrusttext', 'admin'),
+        choose_from_menu ($noyesoptions, 'enabletrusttext', $config->enabletrusttext, '', '', '', true) );
 
     unset($options);
     $options['none'] = 'No courses';

admin/settings/authenticationandsecurity.php

@@ -77,6 +77,7 @@ $temp->add(new admin_setting_configcheckbox('opentogoogle', get_string('opentogo
 $temp->add(new admin_setting_configtext('maxbytes', get_string('maxbytes', 'admin'), get_string('configmaxbytes', 'admin'), PARAM_INT));
 $temp->add(new admin_setting_configcheckbox('messaging', get_string('messaging', 'admin'), get_string('configmessaging','admin')));
 $temp->add(new admin_setting_configcheckbox('allowobjectembed', get_string('allowobjectembed', 'admin'), get_string('configallowobjectembed', 'admin')));
+$temp->add(new admin_setting_configcheckbox('enabletrusttext', get_string('enabletrusttext', 'admin'), get_string('configenabletrusttext', 'admin')));
 $temp->add(new admin_setting_configselect('maxeditingtime', get_string('maxeditingtime','admin'), get_string('configmaxeditingtime','admin'), array(60 => get_string('numminutes', '', 1),
                                                                                                                                                     300 => get_string('numminutes', '', 5),
 																																					900 => get_string('numminutes', '', 15),