Issue #65: Do not enable assert()'s unless we specifically want to debug the audio queue.
Bump version to 2.1.4
Issue #58: Use a timer to close the audio queue if the stream hasn't finished playback.
Refine the check.
Bump version to 2.1.5
Issue #68: Break the cyclic reference between FSAudioStreamPrivate and AudioStreamStateObserver. This allows the memory to be released correctly in the ARC mode.
Do not keep the audio controller in memory but release when the view is released.
Bump version to 2.1.6
Small cleanups.
Refactor: move the seek offset calculation to streamPositionForTime() so that it can be used without seeking.
Use only public methods for seeking.
Issue #66: Add currentSeekByteOffset and playFromOffset
Some clarification to the documentation.
Merge commit '69cb59eca2c5cadd88a7e781ac845228c83c21b9'

Conflicts:
	astreamer/audio_queue.cpp