QuorumBase currently does not use the default implementation of leader election.
Changes to FLE and QuorumCnxManager to support Observers
The changes to QuorumBase have been implemented in the patch of ZOOKEEPER-599 to also eliminate the restrictions on observers only using election alg 0.
Committed revision 891034.
Integrated in ZooKeeper-trunk #628 (See http://hudson.zones.apache.org/hudson/job/ZooKeeper-trunk/628/)
ZOOKEEPER-599. Changes to FLE and QuorumCnxManager to support Observers
. QuorumBase should use default leader election