made 'outplace' decorator (bad idea ?). Fixed 'is_playing'. Put most of the audio reading engine in FFMPEGAudioReader
fixed bug when calling set_duration(None)
replaced proc.wait() by proc.terminate for better (?) crossplatform compatibility
corrected set_duration audio.duration bug. added stderr.close in ffmpeg_writer
moved pygame import in editor, added audioCompositeClip in editor, added stdin.close in ffmpeg_writer
Reduced ffmpeg logging to prevent hanging
Merge pull request #20 from JoshdanG/master

Reduced ffmpeg logging to prevent hanging
Debugging MultiCam
Merge conflicts.