Fix tests. Now urllib3 has been wrapped within a etcd.EtcdConenctionFailed
Fix tests. Now urllib3 has been wrapped within a etcd.EtcdConenctionFailed

dmonroy/python-etcd,thepwagner/python-etcd,jlamillan/python-etcd,aziontech/python-etcd,mbrukman/python-etcd,vodik/python-etcd,kireal/python-etcd,jplana/python-etcd,thepwagner/python-etcd,j-mcnally/python-etcd,mbrukman/python-etcd,vodik/python-etcd,projectcalico/python-etcd,kireal/python-etcd,jlamillan/python-etcd,jplana/python-etcd,dmonroy/python-etcd,ocadotechnology/python-etcd,aziontech/python-etcd,ocadotechnology/python-etcd,sentinelleader/python-etcd,projectcalico/python-etcd,sentinelleader/python-etcd,j-mcnally/python-etcd