ZOOKEEPER-1670. zookeeper should set a default value for SERVER_JVMFLAGS and CLIENT_JVMFLAGS so that memory usage is controlled (reverted)



git-svn-id: https://svn.apache.org/repos/asf/zookeeper/branches/branch-3.4@1528221 13f79535-47bb-0310-9956-ffa450edef68
ZOOKEEPER-1770. NullPointerException in SnapshotFormatter (Germán Blanco via phunt)

git-svn-id: https://svn.apache.org/repos/asf/zookeeper/branches/branch-3.4@1528272 13f79535-47bb-0310-9956-ffa450edef68