[Fluxus] ArgCheck "i" parameter

[gabor papp]

> I sort of think it would be nicer to implicitly truncate floats to ints
> coming in, but this is type coercion that I usually am dead set
> against.
we can change it back if you think it's better. in my opinion it's 
confusing a bit if we silently truncate floats to ints in places where 
we require ints. also in that case we could use "i" and "f" 
interchangeably in ArgCheck, which does not feel right to me.

best,
gabor