JBarberU/RenderingTest — pull request #1 by johanbrook (2012-03-14 20:06:22+00:00)
Title: Make FPS meter an external class

Changed stuff:

- FPS meter now lives in an own class (`FPSMeter`).
- It takes care of drawing itself.
- Call call the `tick()` method for each render.
- Get current FPS with `getCurrentFPS()`.
- Get average FPS with `getAverageFPS()`
- Re-arranged some stuff in `Screen.java` and the controller in order to listen to window close events. When the window closes, the average FPS will be shown.