illume keyboard force on/off

[Richard Kralovic]

> thank you for the workaround. the trouble is that showing the keyboard 
> always requires time to redraw the window than needs to be resized....
> if it stayed as is the response would be faster. i am surprised nobody

This is one of the benefits of using transparent keyboard :-). Although
the transparency itself is not very fast, there is no need to resize the
application window when displaying/hiding the keyboard, so the overall
responsiveness is much better imho.

I implemented the transparency for qwo (and it was discussed quite a lot
here). Afaik nobody made it usable for the illume keyboard so far, but
it shouldn't be hard to do it...

Greets
	Richard