Switch to SVG and gif graphics

To save space; I've changed the code to produce gifs for my webpage and
delete the png's, so Twitter needs to use the gifs too.
Tweak private DL code to remove errors
Introduce Foundation base code
Tighten website appearance
Update scripts to use generic schedule DL code
Filter out 'upcoming' games from the past

Those games were probably canceled or postponed.
Change format of webpages

Changed the font from monospace to something like times; also changed the
top tabs to a menu bar because of distortion on small screens.