Improve functionality and allow rebinding if user doesn't hit control-enter

views/coursewares/showZiplineOrBasejump.jade

@@ -45,7 +45,7 @@ block content
                   if (e.ctrlKey && e.keyCode == 13) {
                     $('#next-courseware-button').click();
                   } else {
-                    $('#complete-courseware-dialog').bind('keypress', modalControlEnterHandler);
+                    $('#complete-zipline-or-basejump-dialog').on('keypress', modalControlEnterHandler);
                   }
                 };