GPII-434: Updates Infusion dependency to latest head revision.

@amb26 This updates node-jqUnit to match the same version of Infusion (latest head revision) as used by Kettle, which I updated prior to merging in your GPII-434 pull request.

We will still need to bump Kettle's dependency on node-jqUnit to the latest head revision of the project repository once this gets merged in. Do we have a policy for how to merge these kinds of minor dependency revision changes? It's currently a bit awkward, but perhaps I'm not clear how we usually work in this regard.