HADOOP-9879. Move the version info of zookeeper dependencies to hadoop-project/pom (Karthik Kambatla via Sandy Ryza)

git-svn-id: https://svn.apache.org/repos/asf/hadoop/common/trunk@1515711 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch: upstream/trunk