Again polygon connectors

Due to the pathfinding only moving one connector, which moves all of them, but that one connector is the "leader" and everyone else actually vanishes when you load a save slot... is a reason that I have changed so that the connectors do not move to mouse position, but you can steer it with CTRL + 1, 2, 3 and 4.

I had to do this to avoid a crash bug with the vertex buffers.