Allow scales to be passed to hline and vline
Allow scales to be passed to hline and vline

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