[racket-dev] New https certificate

Note that I installed a new certificate for the https domains.

(I've tried two new things now: it should be valid for two years, and
it should work for all *.racket-lang.org domains.)

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