bugfix: prevent other timer metrics showing up as histogram bins
bugfix: prevent other timer metrics showing up as histogram bins

also, confirm suspicion wrt regex slowness

dbirchak/graph-explorer,dbirchak/graph-explorer,vimeo/graph-explorer,vimeo/graph-explorer,vimeo/graph-explorer,dbirchak/graph-explorer,dbirchak/graph-explorer,vimeo/graph-explorer