Bases and inputs

I don't know if there are any clear full descriptions of how base and input sentences work in GDL. (They were added to GDL since the last full specification was written.) So, here's a brief write-up of how they work.

The base and input keywords are used to specify the possible true sentences (i.e., components of the game state) and legal moves that could occur over the course of the game.

GDL perf framework preview

I've been working on and off on a performance-testing framework for interpreters of GDL games (i.e. rule engines). There's still more work to be done before it's sufficiently complete and well-documented for others to use, but here's a sneak peek of output. Suggestions are welcome on the Github issues page.