Apply `package-lock.json` updates which I would have expected long ago.
Apply `package-lock.json` updates which I would have expected long ago.

This reflects the changes in a previous version of `npm`, of which I can't
currently remember, which uses the exact versions from the dependencies'
`package.json` files in the `package-lock.json`, rather than keeping the
exact version (roughly, I can't recall).

apollostack/apollo-server