blog: add go1.7 post
blog: add go1.7 post

Change-Id: I750093784ceeadf6a50886eee30031fe95f81240
Reviewed-on: https://go-review.googlesource.com/27053
Reviewed-by: Robert Griesemer <a6752097faebf1f02d80107d77a9be009089afe3@golang.org>
Reviewed-by: David Crawshaw <a2f0bf29257797dd66800b4fbb9945c3e216c004@golang.org>
Reviewed-by: Brad Fitzpatrick <ae9783c0b0efc69cd85ab025ddd17aa44cdc4aa5@golang.org>

jeffreyliguori/blog