updating the CI pusher library for Pusher 2.0 php library..
i may have gone a bit overboard with my formatting… but this should all
work!
whoops. fixing my own silliness. put the CI stuff in Pusher, instead of
the PusherInstance class. this way you don't need to use the Singleton
approach to getting pusher.
default values  for the auth_key, secret and app_id
Merge pull request #4 from grahammccarthy/master

Updated to the Pusher 2.0 php library