Long-press actions with key actions: long-long press (extra 2*long press) gives a long press for the key.
Decreased the time from default long press to is detected to it is actually executed (50ms). Still a delay though.

The implementation is a little clumsy, trying to change as little as possible.

Problem:
 * Mapping long-press to power would always give the menu (key up is not handled until down returns). That code snippet worked in 3.x.g. The timeout is removed, short press always used (just as before)
 * No synchronisation (as before). Should be needed