Logic editing back!
Test screenie:
http://download.blender.org/institute/rt9.jpg
I gave the buttons a bit more width, added nicer linkline draw.
Not working yet:
- theme colors for sensor/actuator types (was old button colors)
- moving sensors up/down (used bad pupmenu... better is icons like
used for modifiers)
- Linkline mouse-over select. Currently deleting a link goes by
drawing the same line again.
Needs to be fully tested for functionality too, leave that to the GE
department. :)
I noted there's bad button hacking with reading button values,
like check_state_mask(). uiBut structure was not meant to be exported
outside of interface module.
