Update change log to reflect refactor.
Update change log to reflect refactor.

tempbottle/kazoo,jacksontj/kazoo,pombredanne/kazoo,rgs1/kazoo,rgs1/kazoo,max0d41/kazoo,Asana/kazoo,pombredanne/kazoo,max0d41/kazoo,bsanders/kazoo,rackerlabs/kazoo,AlexanderplUs/kazoo,jacksontj/kazoo,kormat/kazoo,python-zk/kazoo,rockerbox/kazoo,harlowja/kazoo,rockerbox/kazoo,bsanders/kazoo,harlowja/kazoo,AlexanderplUs/kazoo,python-zk/kazoo,kormat/kazoo,rackerlabs/kazoo,tempbottle/kazoo