HBASE-9121 Update HTrace to 2.00 and add new example usage. -- ADD

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1514130 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9213 Fix release warning

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1514141 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9191 Update Loadbalancer method to throw HBaseIOException

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1514154 13f79535-47bb-0310-9956-ffa450edef68