ZOOKEEPER-1766 Consistent log severity level guards and statements (Jackie Chang via michim)


git-svn-id: https://svn.apache.org/repos/asf/zookeeper/trunk@1529330 13f79535-47bb-0310-9956-ffa450edef68
ZOOKEEPER-1778. Use static final Logger objects (Rakesh R via michim)


git-svn-id: https://svn.apache.org/repos/asf/zookeeper/trunk@1529344 13f79535-47bb-0310-9956-ffa450edef68