Add check to GameDevTrackView.beautify
Add check to GameDevTrackView.beautify

If for some reason the `val` in beautify is undefined or null, the view
will break when it tries to split the result. This makes sure the value
returned by beautify is a string.

jeremiahyan/codecombat,codecombat/codecombat,kidaa/codecombat,kidaa/codecombat,codecombat/codecombat,jeremiahyan/codecombat,codecombat/codecombat,jeremiahyan/codecombat,javatlacati/codecombat,jeremiahyan/codecombat,codecombat/codecombat,javatlacati/codecombat,kidaa/codecombat,codecombat/codecombat,javatlacati/codecombat,javatlacati/codecombat,javatlacati/codecombat,kidaa/codecombat