misc/dashboard: show all race builders as "race" race is more important than arch (moreover race implies x64) don't know how to test it
misc/dashboard: show all race builders as "race"
race is more important than arch (moreover race implies x64)
don't know how to test it

R=golang-dev, dave, r
CC=golang-dev
https://codereview.appspot.com/10484046

h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang,h8liu/golang