gitweb.css

I've been customizing a gitweb server to fit with the rest of our
project pages (the result is http://git.racket-lang.org/).  This was
relatively easy to do except for a few places where gitweb.css
specifies formatting for generic tags like `body', `table', and `td',
which messed up our header.

Maybe it makes sense to localize these styles to to gitweb specific
classes?  (I know that I can just use my own css, but the file is big
enough that I prefer avoiding manually merging in updates.)

-- 
          ((lambda (x) (x x)) (lambda (x) (x x)))          Eli Barzilay:
                    http://barzilay.org/                   Maze is Life!