Stage name: NewIonStorms

If the number of ion storms is less than IonStormActivity, creates new storms. The number of new storms is picked randomly between one and three.

Note that this can exceed the IonStormActivity limit. This is by intention; next turn, a weak storm will die in this case.

This is a testing version.
It may be incomplete, and have more bugs (or features) than the public live version at planetscentral.com.