Application libraries shouldn't need this

Hey Marcelo,
  I have been having trouble getting this into my release. And after speaking with essen @ ninenines (http://github.com/extend/cowboy) I was informed that since I was using this as an application library, it didn't need the mod line in it's .app.src file. Not sure how you're using this, but after doing this I was able to get my app to load it as an application library. Otherwise, it would crash on start because simple_cache:start() was undef. 

Thanks,
James Lyons