Jshintrc

Adds the `node` option to our jshintrc. This exposes variables like process/console/__dirname so we don't have to specify them all in our jshint globals. It also suppresses a complaint about using a function form of `use strict`.
Yeah, this might just be from me copying an existing-and-mostly-sane `.jshintrc` from somewhere else. I'll see if we can remove it and do so if possible. As you said I don't think we're using it anywhere.