set gl attributes before creating the window, or some of them might be ignored (like vsync on osx); also don't skip some reloads when switching to fullscreen and back; finally did a little code re-organisation

{-# LANGUAGE OverloadedStrings #-}
module Consts where

import qualified Data.ByteString.Char8 as B

serverVersion :: B.ByteString
serverVersion = "0"