cmd/guru: add menu to Emacs
cmd/guru: add menu to Emacs

Change-Id: Ife18d22f8f9b81a0e898a2b5da202feb1df23852
Reviewed-on: https://go-review.googlesource.com/24832
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>

dominikh/go-mode.el,emacsmirror/go-mode