Do not set thread priority to realtime as it causes hangups on iOS single core devices. Proper fix pending.
Merge pull request #63 from Unity-Technologies/revert-highpriority-gc

Do not set thread priority to realtime as it causes hangups on iOS singl...
-Os (and -O2 and even -O1) on llvm break/crash the soft debugger.
Work around this for now by manually enabling -Os optimizations from the llvm doc.
Merge pull request #67 from Unity-Technologies/unity-4.2-staging

Unity 4.2 staging