HBASE-8849 - CellCodec should write and read the memstoreTS/mvccVersion (Ram)



git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1511043 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8627 HBCK can not fix meta not assigned issue

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1511081 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9129 Scanner prefetching leaks scanners.

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1511110 13f79535-47bb-0310-9956-ffa450edef68
HBASE-9129 Scanner prefetching leaks scanners. -- MISSED DELETE

git-svn-id: https://svn.apache.org/repos/asf/hbase/trunk@1511116 13f79535-47bb-0310-9956-ffa450edef68
merged from trunk 1521b4c12340d5eb62256955f0fe949b349a4051