Justin.tv open sources iPhone push library (Ruby)

- We wanted something simpler: apn_on_rails is more of a "complete" solution than what we needed, including models for keeping track of devices that are registered with the app, etc. We already had infrastructure for handling all that, but just needed a bit of code to connect to Apple and do the notifications and read feedback.

- We needed to keep connections open. We send constant streams of hundreds-of-thousands of notifications per day. With this in mind it makes sense to keep persistent connections open to the service and stream data in.

- Both apn_on_rails and the original APNs gem have broken support for reading from the feedback service. We had to support this fully.