Planning some "de-bloating"

Having finally finished my finals, I look into removing some bloat from the library. By "bloat", I refer to stuff that is of no real use, or stuff that can be simplified. Also, it is quite important to clean-up the source code, which is messed up in quite a few places, and remove some APIs that are not really needed anymore, e.g. the Framerate API, which is not needed since SDL got Vsync support.

-- Aggelos Kolaitis