ZOOKEEPER-1400. Allow logging via callback instead of raw FILE pointer (michi via fpj)



git-svn-id: https://svn.apache.org/repos/asf/zookeeper/trunk@1516123 13f79535-47bb-0310-9956-ffa450edef68
ZOOKEEPER-1679. c client: use -Wdeclaration-after-statement (michi via fpj)



git-svn-id: https://svn.apache.org/repos/asf/zookeeper/trunk@1516126 13f79535-47bb-0310-9956-ffa450edef68