[CentOS] calendar

> Never mind, noscript was blocking the button from appearing.
> 
> Now it won't install, since there doesn't appear to be an x86_64 version....

 http://releases.mozilla.org/pub/mozilla.org/calendar/lightning/releases/1.0b1/contrib/linux-x86_64/

 (Haven't checked if there's a 1.0b2)