Fixed a typo

UISwitch for "Reverb" referenced "limiter" property.
Fixed some issues with applying some audio session options
Fixed AEMixerBuffer not deallocating due to reference cycle
Added missing autoreleasepool for thread start
Added defensive autoreleasepool in AVFoundation C-callback
Trying to catch leak of autoreleased AVAudioSessionRouteDescription and other audio session objects
Tweaked AB connection change behaviour to only restart audio unit if AB connected
Added support for ABFilterPort, to correctly identify input channel count when connected
Removed pan limits bug workaround - no longer necessary
Fixed an audio session interruption resume issue
Don't bother processing route changes during audio session interruptions
Ignore duplicate audio session interruption notifications
Updated podspec
Documentation update
iOS 6 compatibility fix
Fixed some bugs in message passing code
Work-arounds for non-main-thread AVAudioSession notifications
Addressed a possible crash on re-init
Avoid processing route changes when stopped, to avoid noisy-but-harmless errors
Neater audio route logging