codereview: repeated hg mail sends "PTAL"
codereview: repeated hg mail sends "PTAL"

also send out hg mail for TBR submits

R=r
CC=golang-dev
http://codereview.appspot.com/183137

tv42/old-go,apparentlymart/golang,tv42/old-go,apparentlymart/golang,apparentlymart/golang,nightlyone/golang,pombredanne/go-deleteme,nightlyone/golang,h8liu/golang,gnanderson/go,apparentlymart/golang,h8liu/golang,nightlyone/golang,dsriram/golang,bdwalton/debian-golang,tianon/debian-golang,tv42/old-go,dsriram/golang,h8liu/golang,dsriram/golang,ssrl/go,ssrl/go,ssrl/go,tv42/old-go,bdwalton/debian-golang,ssrl/go,bdwalton/debian-golang,pombredanne/go-deleteme,h8liu/golang,gnanderson/go,gnanderson/go,ssrl/go,tianon/debian-golang,apparentlymart/golang,pombredanne/go-deleteme,tianon/debian-golang,dsriram/golang,h8liu/golang,tv42/old-go,nightlyone/golang,pombredanne/go-deleteme,tianon/debian-golang,nightlyone/golang,bdwalton/debian-golang,dsriram/golang,bdwalton/debian-golang,pombredanne/go-deleteme,gnanderson/go,dsriram/golang,gnanderson/go,pombredanne/go-deleteme,tianon/debian-golang,dsriram/golang,tv42/old-go,bdwalton/debian-golang,bdwalton/debian-golang,ssrl/go,apparentlymart/golang,tianon/debian-golang,tianon/debian-golang,pombredanne/go-deleteme,apparentlymart/golang,bdwalton/debian-golang,tv42/old-go,gnanderson/go,h8liu/golang,ssrl/go,gnanderson/go,nightlyone/golang,h8liu/golang,tianon/debian-golang,nightlyone/golang