Updated function of aHELP.
No more stopwatch flashing "=", but the code is there.
Stopwatch display update speed improved.
More compile-time options removed - see src/defile.txt.
More code documenation and comments.
Minus sign during numeric entry bug fixed.
Keys 1 and 2 now work in the CAT label browser.
When browsing a catalogue:
	Shift-EXIT now searches for the printer symbol.
	F5 (Arrow) now searches for ->
	Shift F now searches for F.
More keys can be used as numeric shortcuts.