fix NPE.
HIVE-4791 : improve test coverage of package org.apache.hadoop.hive.ql.udf.xml (Ivan Veselovsky via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1498054 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4756 : Upgrade Hadoop 0.23 profile to 2.0.5-alpha (Brock Noland via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1498056 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4740 : HIVE2379 is missing hbase.jar itself (Navis via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1498062 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4692 : Constant agg parameters will be replaced by ExprNodeColumnDesc with single-sourced multi-gby cases (Navis via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1498148 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4647 : RetryingHMSHandler logs too many error messages (Navis via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1498149 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4781 : LEFT SEMI JOIN generates wrong results when the number of rows belonging to a single key of the right table exceed hive.join.emit.interval (Yin Huai via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1498150 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4798 : NPE when we call isSame from an instance of ExprNodeConstantDesc with null value (Yin Huai via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1498151 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4559 : hcatalog/webhcat scripts in tar.gz don't have execute permissions set (Eugene Koifman via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1498156 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4618 : show create table creating unusable DDL when field delimiter is \001 (Navis via Ashutosh Chauhan)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1498164 13f79535-47bb-0310-9956-ffa450edef68
HIVE-4781 : Adding new data files for tests. Missed in original commit.

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1498238 13f79535-47bb-0310-9956-ffa450edef68
Merge remote-tracking branch 'upstream/trunk' into HIVE-2206-3671-Improvement