OSCKit crashes on iPhone 5 running iOS 8.1

Hi,

first off, thanks for this library! I'm currently trying it out in a Swift project targeting iOS: https://github.com/codeflows/LivePlaylist/blob/master/LivePlaylist/PlaylistViewController.swift#L21-L22

Sending OSC messages worked fine in the Xcode emulator, but when running the code on an actual device (iPhone 5 / iOS 8.1), it crashed with EXC_BAD_ACCESS:

![screenshot 2014-12-08 16 45 25](https://cloud.githubusercontent.com/assets/29481/5340987/f3dc3766-7efa-11e4-8a88-f6b969c54ff5.png)

Lowering the buffer size to 512kB (or anything under approx. 1000*1024 bytes) fixed the problem and the code now works on iOS as well.

I know next to nothing about C/C++, so maybe there's a better solution to this problem?

- Jari