Why is Travis CI using FF 19 ???
Why is Travis CI using FF 19 ???

chaosmail/line-chart,chaosmail/line-chart,chaosmail/line-chart,n3-charts/line-chart,n3-charts/line-chart-vanilla,chaosmail/line-chart,n3-charts/line-chart-vanilla,pacozaa/line-chart,n3-charts/line-chart,chaosmail/line-chart,n3-charts/line-chart,n3-charts/line-chart,n3-charts/line-chart-vanilla,pacozaa/line-chart,n3-charts/line-chart-vanilla,pacozaa/line-chart,pacozaa/line-chart,pacozaa/line-chart