cloud/cloudlaunch/: new package
cloud/cloudlaunch/: new package

Copied from Camlistore (pkg/cloudlaunch) at rev
8d76f0563bd0f3ce5fb9a3b029acc18a7fcb85e7

Change-Id: Ia8355204576fd6d155e1c036a201021b853c9c37

camlistore/go4,bradfitz/go4