Blender Git Loki

- fixed error (OSX only i think) that didnt make window/area active when
startup
- made nexted pulldowns easier to enter with diagonal mousemovement.
coded a heuristic like:
- while mouse moves in good x direction
- while mouse motion x is bigger than y motion
- while distance to center block diminishes
- only for 1 second
Works nice, but i left debug prints commented in for those who'd like
to tweak it.