iOS 3.x compatibility lost

[jonnyijapan]

Somewhere along the past updates you've lost compatibility with iOS 3.x by use of the UIBackgroundTaskIdentifier (at least). Not sure if this was on purpose or not, but I believe this all should work without the background stuff anyway. I've so far failed nailing the exact point of inclusion of the background stuff, as I still have a hard time with git. I'm hoping for some iOS 3.x adaptations. :-)