some other special cases
Hit a bug where multiple perfbars on the same host were getting aliased
after switching pbNodeName to the last octet.  Now using pbNodeId instead,
which is unique.
Change history and instantaneous smoothing blend from 3:2 to 1:1.
timeout
Merge branch 'master' of github.com:0xdata/h2o
Merge branch 'master' into aboyoun-coxph