HBASE-12150 Backport replication changes from HBASE-12145
HBASE-12008 Remove IntegrationTestImportTsv#testRunFromOutputCommitter

Conflicts:
	hbase-it/src/test/java/org/apache/hadoop/hbase/mapreduce/IntegrationTestImportTsv.java

Amending-Author: Andrew Purtell <apurtell@apache.org>