After working with the navigation for awhile, I realized that it's a poor map; what I really wanted was
a controller/view pair, where events flow up to the controller and then messages on "what to draw" flow
down to the view. It work quite well, and the wizard frame is smaller and smarter for it.
I've also moved the WDIO-driven tests into the 'tests' folder, because it (a) makes more sense to put
them there, and (b) it prevents any confusion about who's in charge of node_modules.
