Allow nearby to run at top to avoid flash of unstyled content

RL nearby modules: Tweak dependencies and load position

beta.common is only needed by page previews due to the requirement of
the Page view and no longer needing animations

Move nearby to top of page so that when loading from cache there is no
flash of unstyled content

Make sure nearby only runs when jQuery is ready

Adjustments to navigation so it can run from top of page and to previews

Change-Id: I434a81af904a9db896abc6eb635ee7be86a6d502
Merge "Allow nearby to run at top to avoid flash of unstyled content"