Nerf ArenaBlast Legacy Codebase Refactoring

Nerf ArenaBlast released in October of 1999 and received very few official updates. Community members like myself have filled the void with unofficial patches and updates. Over the years I've had the opportunity to refactor a large chunk of Nerf ArenaBlast's engine code, resulting in a wealth of practical experience working with legacy code. Here you will find a succinct changelog that should convey the sheer amount of my effort that has gone into updating the codebase.