Merge code with Klondike

[pulkomandy]

We currently have two different card games at beosarchive that share 90% of their code. This is annoying to maintain and results in fixing all bugs twice.

It would be great if the two apps were merged in one, and then architectured so we can add more game rules to it (similar to PySolFC for example).

[jsteinaker]

Not sure if you're talking about the two games that are included in this app (Spider and Klondike) or an entirely different app hosted elsewhere. As an easy project for me to tackle I started moving things to the superclass and I already got 80 lines less without thinking too much, as you said a lot of it is the exact same code on both games. In the next few days I'll try to go a little deeper and see what else can be shared between Spider and Klondike and send a PR for reviewing.

[pulkomandy]

Ah, yes, I forgot that we had already put them in the same git repository, so there's already that.
But indeed there is a lot that can be moved to the superclass and that will make it easy to add more games later.

[scottmc]

We should think about renaming this Solitare, now that it will be more than just Spider or Klondike.