Update committee members

Resulting from the general meeting at the Brisbane Railscamp on `2014-05-10`, we have a few new committee members. This pull request updates the site to showcase the new team.

It also corrects a typo whereby my last name was incorrectly spelled `Parndt`.

If you'd like, I can rebase all of this into one commit. Unsure if that's the preferred behaviour for this repository.