Update jupyter-js-widgets
Update jupyter-js-widgets

bloomberg/bqplot,SylvainCorlay/bqplot,SylvainCorlay/bqplot,ChakriCherukuri/bqplot,ChakriCherukuri/bqplot,ssunkara1/bqplot,ChakriCherukuri/bqplot,dmadeka/bqplot,SylvainCorlay/bqplot,rmenegaux/bqplot,bloomberg/bqplot,dmadeka/bqplot,ssunkara1/bqplot,rmenegaux/bqplot,bloomberg/bqplot