added spec-implementation detection to howler, as createGainNode is deprecated.
fixed more cases where webkit diverges from the current spec.
A bit of code cleanup, new minified file, and bump to 1.0.9
Fix issue that caused simultaneous playback of audio sprites to break while using HTML5 Audio
Fixes issue #15 now audio keeps playing for non-sprite HTML5 audio
dumb rewording, but the changes must be committed