[BACKLOG-115] Certify support for Kerberos for CDH 5.1

Support MR2 jobs for CDH51 shim (PDI-11959)
[BACKLOG-751] CLONE - Hadoop Job Executor: Jobs using org.apache.hadoop.mapreduce API don't work - Fix for CDH 5.1
[BACKLOG-365] Unable to create a database table data source against Apache Hadoop

Handle case with old shims not having hive2 driver.
Detect pentaho's hive and hive2 error messages in setAutoCommit.
Merge pull request #160 from mattyb149/backlog-365

[BACKLOG-365] Unable to create a database table data source against Apache Hadoop
Merge pull request #158 from stepanovdg/BACKLOG-751

[BACKLOG-751]CLONE - Hadoop Job Executor: Jobs using org.apache.hadoop.mapreduce API don't work - Fix for CDH 5.1
[CLEANUP] version fixes for CI
Merge pull request #161 from smaring/master

[CLEANUP] version fixes for CI
[CHECKSTYLE-FIX] pentaho-hadoop-shims project.

Conflicts:
	cdh51/src/org/pentaho/hadoop/shim/cdh51/ConfigurationProxyV2.java