HBASE-12378 Add a test to verify that the read-replica is able to read after a compaction
HBASE-12375 LoadIncrementalHFiles fails to load data in table when CF name starts with '_'

Signed-off-by: stack <stack@apache.org>
HBASE-12381 use the Maven Enforcer Plugin to check maven and java versions.

Signed-off-by: stack <stack@apache.org>
HBASE-12384 TestTags can hang on fast test hosts
HBASE-11835 Wrong managenement of non expected calls in the client (Nicolas Liochon)
HBASE-11819 Unit test for CoprocessorHConnection (Talat Uyarer)
    HBASE-11819 Unit test for CoprocessorHConnection (Talat Uyarer) -- ADDENDUM testannoations fixup
HBASE-11819 Unit test for CoprocessorHConnection (Talat Uyarer) -- REVERT. Failed in a test run here: https://builds.apache.org/job/PreCommit-HBASE-Build/11530//testReport/
HBASE-12388 Document behavior wrt coprocessors when wal gets empty waledits.

Signed-off-by: stack <stack@apache.org>
 HBASE-11819 Unit test for CoprocessorHConnection (Talat Uyarer) -- ADDENDUM testannoations fixup -- REALLY REMOVE IT
HBASE-9003 TableMapReduceUtil should not rely on org.apache.hadoop.util.JarFinder#getJar (Esteban Gutierrez)

Signed-off-by: stack <stack@apache.org>

Conflicts:
	hbase-server/src/test/java/org/apache/hadoop/hbase/mapreduce/TestJarFinder.java