adding dndupload support to mod_subpage

subpage-dnd.patch

diff --git a/view.php b/view.php
index b0cdac0..b6a1778 100644
--- a/view.php
+++ b/view.php
@@ -29,6 +29,7 @@ require_once('lib.php');
 require_once($CFG->dirroot.'/course/lib.php');
 require_once($CFG->dirroot.'/mod/forum/lib.php');
 require_once($CFG->libdir.'/completionlib.php');
+require_once($CFG->libdir.'/dnduploadlib.php');
 
 $cmid        = optional_param('id', 0, PARAM_INT);
 $edit        = optional_param('edit', -1, PARAM_BOOL);
@@ -189,6 +190,7 @@ if (!empty($CFG->enablecourseajax)
     $COURSE->javascriptportal = new jsportal();
     $useajax = true;
 }
+dndupload_add_to_course($COURSE);
 
 // this will add a new class to the header so we can style differently
 $CFG->blocksdrag = $useajax;