don't build against go tip
don't build against go tip

rsliang/spiff,mikfreedman/spiff,geofffranks/spiff,actionjack/spiff,cloudfoundry-incubator/spiff,mandelsoft/spiff,mandelsoft/spiff,cloudfoundry-incubator/spiff,geofffranks/spiff,mikfreedman/spiff,actionjack/spiff,rsliang/spiff