ZEngine Todo List
    -Random number class
    -Net Example
    -Integrate Particle Engine
    -Add Support for PhysFS in ZMusic.  (Waiting on SDL_mixer.)
    -ZSprite class (XML?)
    -Entirely New ZFont class, using display lists
    -FreeBSD support / OSX support
    -Lua Scripting Integration

Things to add outside ZEngine:
    external widget library (Gewi)
    Examples + Tutorials