message: [table viz] get metrics to right-align
  Moved the histogram to be rooted on the right side as well
  fixes
diff: @@ -94,12 +94,13 @@ function tableVis(slice, payload) {
  // The 0.01 to 0.001 is a workaround for what appears to be a
  // CSS rendering bug on flat, transparent colors
  return (
  - `linear-gradient(to right, rgba(0,0,0,0.2), rgba(0,0,0,0.2) ${perc}%, ` +
  + `linear-gradient(to left, rgba(0,0,0,0.2), rgba(0,0,0,0.2) ${perc}%, ` +
  `rgba(0,0,0,0.01) ${perc}%, rgba(0,0,0,0.001) 100%)`
  );
  }
  return null;
  })
  + .classed('text-right', d => d.isMetric)
  .attr('title', (d) => {
  if (!isNaN(d.val)) {
  return fC(d.val);
  