Initial support for Mac OS X integration (via GTK+/OSX/Building). Now I include binary Mac OS X applications for download. These should work on Snow Leopard or later, and require no external utilities beyond those mentioned in the Operator's Manual. These dependencies are also in the process of being internalised.

Improve RNG seed by using arc4random(), if available, or hashing a set of exogenous variables otherwise. Also heavily analyse the fictitious play component of the best-reply dynamic, including some minor fixes.

Lastly, the gtkbirds executable has been renamed to just birds for simplicity.