HBASE-7897 Add support for tags to Cell Interface

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1480431 13f79535-47bb-0310-9956-ffa450edef68
HBASE-1762 Remove concept of ZooKeeper from HConnection interface

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1480455 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8506 Remove unused/dead classes

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1480492 13f79535-47bb-0310-9956-ffa450edef68