Remove subversion & use newer version of the builder which
makes -verbose direct all.bash output to stdout/stderr.
LGTM=cmang
R=adg, cmang
CC=golang-codereviews
https://golang.org/cl/140910044
Good checkpoint. Can now do builds by hand.
Next step is coordinator server in front of this, and things
to fire up beefy GCE instances running CoreOS and each build
in its own Docker container. See README for how to do a single
build.
LGTM=adg
R=adg
CC=golang-codereviews
https://golang.org/cl/134870043