Added copy of GameContainer.java:
- updateAndRender() no longer calls Log.error(), and re-throws the original exception as a SlickException. This prevents errors from being logged twice, and now the relevant one is shown in the error popup (instead of a useless "failure" message).
- getBuildVersion() no longer calls Log.error(), and removed slick build information from "version" file.
Signed-off-by: Jeffrey Han <itdelatrisu@gmail.com>
