bump version to 1.2.5
bump version to 1.2.5

rickypai/zookeeper,songling88/zookeeper,rickypai/zookeeper,zk-ruby/zookeeper,songling88/zookeeper,songling88/zookeeper,rickypai/zookeeper,songling88/zookeeper,zk-ruby/zookeeper,zk-ruby/zookeeper,rickypai/zookeeper