Enhance timeline plugin to support multi-canvas rendering (#765)
Enhance timeline plugin to support multi-canvas rendering (#765)


agamemnus/wavesurfer.js,katspaugh/wavesurfer.js,ffxsam/wavesurfer.js,agamemnus/wavesurfer.js,ale-grosselle/wavesurfer.js,ale-grosselle/wavesurfer.js,katspaugh/wavesurfer.js,ffxsam/wavesurfer.js