Tennix 0.3.3: Dynamic Text Engine

Tennix 0.3.3: Dynamic Text Engine

This is Tennix 0.3.3, adding the first version of our dynamic
text engine, which enables us drawing animated bit-mapped fonts
to the screen. Currently used in menus and as gameplay status.

This also disables loading the custom icon (SDL_WM_SetIcon)
when Tennix is ran on Mac OS X, as Tennix on OS X already has a
beatiful icon and OS X doesn't display per-window icons.