ktouchpadenabler moved to kdereview

[Albert Astals Cid]

My little kded daemon that listens to XF86XK_TouchpadToggle and enables 
disables the touchpad accordingly has been moved to kdereview.

My plan is moving it to extragear, not really sure if -base or -utils.

The code doesn't have a kcm or any kind of configuration since it is designed 
to "just work".

I'd appreciate any review or suggestion over it.

Cheers,
  Albert