[Fluxus] drflux fixes/problems

[gabor papp]

> now i'm able to use fluxus in racket.
great. are you also getting black windows sometimes?

>   ../../../../../usr/local/lib/fluxus-018/input.ss:85:11: vector-set!:
> expects type<non-negative exact integer>  as 2nd argument, given: -1;
> other arguments were: '#(#t #f #f) #f
thanks for the report. fixed this and drflux version number mixup in git.

best,
gabor