Thanks so much for this!
I was up all night desperately trying to get Yosemite to boot after it successfully installed on my external drive, only to get held back by Clover and its convolutedness (darn thing kept freezing upon boot). I was just about to give up and install it on my real Mac instead (2013 iMac).
But I'm glad this was just released. I wiped out all of Clover on my Yosemite installation, replaced it with this Chameleon version, swapped a few extensions out and presto—Yosemite now running almost perfectly.