Reimplement /go/ links without the Go langserver
Created by: chrismwendt
This is needed for 3.0 preview on Sourcegraph.com https://github.com/sourcegraph/sourcegraph/issues/1187
Created by: chrismwendt
This is needed for 3.0 preview on Sourcegraph.com https://github.com/sourcegraph/sourcegraph/issues/1187