HBASE-8137 Add failed to open/close region state

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1459385 13f79535-47bb-0310-9956-ffa450edef68
HBASE-8151 Decode memstoreTS in HFileReaderV2 only when necessary

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1459432 13f79535-47bb-0310-9956-ffa450edef68
HBASE-7948 client doesn't need to refresh meta while the region is opening

git-svn-id: https://svn.apache.org/repos/asf/hbase/branches/0.95@1459501 13f79535-47bb-0310-9956-ffa450edef68