MDL-14493 First checkin of Feedback module into HEAD.

I made a number of small tidy-ups to the contrib version before adding this here:

  - fixed some language string names
  - renamed a capability from deletecompleteds to deletesubmissions (can we use "submissions" everywhere?)
  - got rid of language packs (moved english to correct location)
  - deleted 'pics' type (it needs to be rewritten to use user files in moodledata)
  - moved changelog into README.txt
  - moved captcha font out of subdir
  - bumped version to today

Thanks very much to Andreas Grabs for all your work on this module so far, and congratulations!   :-)

mod/feedback/delete_completed_form.php

@@ -0,0 +1,32 @@
+<?php // $Id$
+/**
+* prints the form to confirm delete a completed
+*
+* @version $Id$
+* @author Andreas Grabs
+* @license http://www.gnu.org/copyleft/gpl.html GNU Public License
+* @package feedback
+*/
+
+require_once $CFG->libdir.'/formslib.php';
+
+class mod_feedback_delete_completed_form extends moodleform {
+    function definition() {
+        $mform =& $this->_form;
+
+        //headline
+        //$mform->addElement('header', 'general', '');
+        
+        // hidden elements
+        $mform->addElement('hidden', 'id');
+        $mform->addElement('hidden', 'completedid');
+        $mform->addElement('hidden', 'do_show');
+        $mform->addElement('hidden', 'confirmdelete');
+
+        //-------------------------------------------------------------------------------
+        // buttons
+        $this->add_action_buttons(true, get_string('yes'));
+
+    }
+}
+?>