This is an implementation of patience (solitaire). It consists of a
general class library and six games implemented using it.

I wrote this program when learning Qt. There are a number of things I
would have done differently now. One of the silliest is that all the
intelligence lies in the cards (which are individual widgets, by the way)
instead of in a Patience class.

There are a lot of static variables. Don't try to instantiate more than one
dealer at a time -- that way lies madness.

The general base classes could doubtlessly have been a lot more general.