Fixes Issue 1 and set Textbackground to black by default#2

Open

alb42 wants to merge 3 commits intotung:masterfrom

Commits on Jan 3, 2020

Fixed: ERROR- RemoveCritter asked to remove a critter that dont exist.
alb42
committed
init black background, for systems not have black as default (e.g. Amiga)
alb42
committed
no special treatmeant for directory separator needed, just use the constant for it
alb42
committed