0.1.9

panning: Sound::panning(), Sound::set_panning(), Change::Panning(_) command
add panning example
fix a bug where tweening the value with commands the first time would start with the default value of the parameter
fix a bug where commands with 0 duration wouldn't get triggered
performance improvements

0.1.8

reduce the amount of boilerplate in sound.rs with the delegate!() macro for generating SoundWrapper's methods (thanks @Microwonk!) #2

0.1.7

fix Sound skipping the first three frames (#1, thanks @Sytronik!)
add pause(), paused() and resume() methods for Sound

0.1.4

Improve perfomance by using parking_lot instead of OS mutexes. See https://webkit.org/blog/6161/locking-in-webkit/.