Conflicts:
	tunnelmanager.py

Conflicts:
	tunnelmanager.py

Conflicts:
	TODO

Conflicts:
	vifibnet.py

much faster than calculating distance distance

It is still very slow, I will try to improve performance

The results are now directly flushed to the disc so, if a simulation is taking too long, we can stop it and restart where we are

It allow the simulator to run multiple simulation at once (but not yet multiple runs)
and to let the system decide how it should scale on each computer