final clean up for flex line
final clean up for flex line

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