title: Add a slider (like in "TrainYard") to a cocos2d project
body: <p>I really tried everything:
  stackoverflow, google, github, cocos2d, everything.
  Didn't find anything helpful to create a custom slider that looks nice in a GAME, I successfully added a normal UISlider and changed it properties a bit, like maximumValueImage an so on... but it is awful.
  PLEASE HELP</p>