Improve printing screen style information
Various fixes to the parser
Cleanup set and reset mode
Remove tokenFinished from all the cases for FinalBytesNoIntermediate

and just finish after the switch. Also make the debug prettier, and we
don't support 256 colors yet.
Bunk of changes. Started working my way through the modes
Introduce the cursor class And remove the UpdateAction

The cursor class makes it possible to handle multiple states for
document manipulation

The UpdateAction became just too complicated, and it gave not obvious
benefit