Update TODO.

docs/TODO

 Medium Term:
 
-- Remove mootools dependency from vnc.js and canvas.js.
-    - canvas.js deps:
-        $(), getPosition, getScroll
+- Option to force SSL in proxy.
 
 - Implement Cursor pseudo-encoding (CSS cursor)
     http://en.wikipedia.org/wiki/ICO_(file_format)
     https://developer.mozilla.org/en/Using_URL_values_for_the_cursor_property
 
-- Implement UI option for VNC shared mode.
-
 - Status bar buttons:
     - Isolate menu UI in DefaultControls.js
     - Icons in status area upper left
@@ -32,7 +28,6 @@ Medium Term:
             - shared mode
 
     - Keyboard menu:
-        - Send CtrlAltDel
         - Ctrl Lock, Alt Lock, SysRq Lock
         - Highlight menu icon when keys are locked
 
@@ -46,6 +41,8 @@ Medium Term:
 
 Longer Term:
 
+- Implement UI option for VNC shared mode.
+
 - Get web-socket-js RFC2817 proxying working again.
 
 - Support for Spice protocol.