Tue Dec 25 10:22:00 EST 2012

Change of focus

Need to build an engine for an OpenGL GUI.  Thinking about using CELL
and LEAF, but leave some room to build it in EX too.

* Layout engine: translate a heriarchical GUI description to an
  on-screen layout.

* Event dispatcher: focus on the hard problem: editable graphs.

1. OpenGL window context with mouse/keyboard events.
2. Layout engine for knobs, sliders, LCDs and grouping boxes.