jshint fixes
jshint fixes

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