Fixed watchers that were erroneously calling the function on session re-establishment even if the data hadn't changed.
Fixed watchers that were erroneously calling the function on session re-establishment even if the data hadn't changed.

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