Remove cruft from build.json files and fix jshint warning in top-app.js.
Change one of the nested apps to route via the navigate() function rather than PJAX to provide a broader test spectrum.

This actually didn't work on non-pushState browsers which has been worked around by overriding a nested apps _navigate function to instead call the top level app's _navigate function.
Commit build files and bump to latest changes in yui dev-3.x branch.