make it work behind a proxy

JSON URLs are now relative, and the server only listens on localhost.
Fixed bug in adding score; rewrote score code so values aren't hard-coded into JS
Updated to jQuery 2.0.3 because this is an IE free club anyhow. Fixes autocomplete bugs.
Moved fb down and distance out of team control; fixed 1st&10; fixed Display and Clear; fixed Possession.