Fixed lots of small problems in various places.
Added new protocol commands screen_add/del_key so screens
can request keystrokes when they are being displayed.
Lots of work on CPU GRAPH and BIG NUMBER CLOCK screens.
Fixed 'output' function in MtxOrb.c
Passed *every* piece of source in this project through indent. I'm setting
things up with ctags soon and am actually going to *gasp* use a nice
programming environment to continue development in. :)