Make genetic algorithm more like GAlib by mwall.
Improve GATSP test script.

The testscript can be modified from the commandline,
rather than recompiling new settings.

Signed-off-by: Karl Damkjær Hansen <kdh@es.aau.dk>
Make a refueling problem.

The refueling problem includes fuel depots. The problem is based
on the euclidean problem but has mutations to inject and extract
fuel stops.

Signed-off-by: Karl Damkjær Hansen <kdh@es.aau.dk>