More message window cleanup.
Removed unecessdary home() routine.
Removed unused curx/cury.
Removed maxrow and maxcol.
Removed rows and cols.
Additional cleanup.
Implemented CellBuffer.
Use CellBuffer for both composition buffer and screen buffer.
Windows now using cell buffers.
Windows width/heights are now initialized based on type.
Moving to using std::list to track windows.
Removed unneeded window array.  Now using window list exclusively.
Undoing an unintended change to base wintty.h
Modifying to screen width/height as appropriate.
All window types now have there own width/height constants.
Increased size of screen.
Update composition buffer by iterating over window list.
Header file cleanup.
More window cleanup.
More window cleanup.
Added control window.
Added hit testing to windows.  Add control buttons.
Turned on GOLDOBJ experimental option.