cmd/coordinator/buildongce: make the dev coordinator have a static IP
cmd/coordinator/buildongce: make the dev coordinator have a static IP

I made it static in GCE's web UI but as always, I forgot you can't
rename IP addresses in GCE, so we get another special case here since
our auto-detect logic below wouldn't work. Oh well.

Change-Id: Iae2a435576e9b03959f2e634929da94f0e9275c2
Reviewed-on: https://go-review.googlesource.com/11902
Reviewed-by: Andrew Gerrand <395a7d33bec8475c9b83b7d440f141bcbd994aa5@golang.org>

evandbrown/build,proppy/build,golang/build,proppy/build,proppy/build,proppy/build,golang/build,evandbrown/build,golang/build,golang/build,evandbrown/build