Rebuild npm-shrinkwrap.json using latest node

After clearing out my npm cache (`npm cache clear`) and removing my
local node_modules directory I did a fresh install using the shrinkwrap
file from master, then re-ran `npm shrinkwrap` and it gave this output.

It seems to install correctly under the latest 0.8.x with npm 1.2.30, as
well as under 0.10, so I can't see any problems with it.