title: How to update cocos2d?
body: <p>I've been using an older version of cocos2d for iPhone for an existing project - never change a running system. Now I'd like to upgrade to a more recent version and don't know how I should proceed about this.</p>
  
  <p>Just install a newer version? Will the install script overwrite all of the old files and take care of the old templates too? Or do I have to remove the old files manually - and if so, which files do I need to remove?</p>
  
  <p>Thanks alot!</p>