meow-select-on-[change|append|insert] changes where the mark goes

[Haxxflaxx]

I was playing around a bit with the new select on insert functionality and was looking at activating the region after the fact, but I noticed the variable is in charge of actually setting the mark, not just activating the selection.

Would it be better if the mark is set regardless, then the variables decide if the selection should be left active or not?

Also maybe a meow-activate fallback for meow-reverse?