HBASE-12445 hbase is removing all remaining cells immediately after the cell marked with marker = KeyValue.Type.DeleteColumn via PUT (Hani Nadra)

Conflicts:
	hbase-client/src/main/java/org/apache/hadoop/hbase/protobuf/ProtobufUtil.java
HBASE-12457 Regions in transition for a long time when CLOSE interleaves with a slow compaction.
Revert "HBASE-12457 Regions in transition for a long time when CLOSE interleaves with a slow compaction."

This reverts commit 56af34831fc854c177697aefaf80d535996f87e8.
Update CHANGES.txt for 0.98.8RC1
HBASE-11992 Backport HBASE-11367 (Pluggable replication endpoint) to 0.98 (Ramkrishna S. Vasudevan)
Update POM version to 0.98.9-HBASE-11992-SNAPSHOT