use `base64.b64encode` to deal with bytes input under Py3k
use `base64.b64encode` to deal with bytes input under Py3k

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