Keyhit library update

[SMcNeill]

Yes, even "I" noticed there was something a bit odd with _keyhit. Didn't quite get why those zeros kept appearing, or how to control them.
It's much clearer now. Thanks.

Will the _keyhit command be updated, and will this mean another download of the whole of PE?

I certainly hope so! Heck, I'd download three more versions of PE to have fully functional input working.