update dashboard for future tolerance
update dashboard for future tolerance

While we're at it:

* simplify queries
* remove old viz options for deprecated metrics
* move all "bad things" to separate Y-axis on the right, because they're
  typically much lower volume and easily get drowned out.

replay/metrictank,raintank/metrictank,raintank/metrictank,raintank/raintank-metric,raintank/raintank-metric,raintank/metrictank,replay/metrictank,raintank/metrictank,replay/metrictank,replay/metrictank,raintank/raintank-metric