[meta-oe] cloud9: update repository for sass.js

Updated repository location due to old repository being removed.

http://www.mail-archive.com/openembedded-devel@lists.openembedded.org/msg32587.html

Signed-off-by: Jason Kridner <jdk@ti.com>
Cc: Dale Schaafsma <dales773@hotmail.com>