Fixed a bug in course search when course numbers with leading zeros were searched for.

application/modules/courses/models/CourseModel.php

@@ -560,7 +560,7 @@ class Courses_CourseModel extends Unl_Model
             $select->where('c.subject = ?', $criteria['subject']);
         }
         if ($criteria['courseNumber']) {
-            $select->where('c.courseNumber LIKE ?', $criteria['courseNumber'] . '%');
+            $select->where('c.courseNumber LIKE ?', intval($criteria['courseNumber']) . '%');
         }
         if ($criteria['courseLetter']) {
             $select->where('c.courseLetter = ?', $criteria['courseLetter']);