fixed marker remove function so it makes sure handlers receive the 'remove' event
fixed marker remove function so it makes sure handlers receive the 'remove' event

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