Use float to position the navigation controls and map on the right
rather than a table so that we get more consistent positioning and
avoid forcing the map of the right hand side of the viewport.
- Map is smaller and placed to the side with lists of friends
and nearby users (now excluding friends) beside it.
- Map includes friends as well as nearby users.
- Friend and nearby user lists include photos and links to
friend/unfriend as appropriate.
- OAuth settings link moved up with all the other links in the
main navigation bar.
The addition of friends to the map also carries through to the user
settings page.
the existing :notice messages.
Also reviewd all existing flash messages and changed them to be errors or
warnings when appropriate and checked that those which are not followed by
a redirect are done as flash.now[] instead of flash[].
