Add `glob` version 3.x dependency to maintain node 0.8 compatibility.

The `jshint` package depends on the `cli` package, which has a
dependency on `"glob": ">= 3.1.4"`.  Unfortunately, `glob` version
4.x.x is incompatible with node 0.8.  Explicitly add a dependency on
the same `glob` version 3.2.3 in order to prevent `npm install` from
crashing on node 0.8.