Revert HIVE-8271: Jackson incompatibility between hadoop-2.4 and hive-14

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HIVE-8322: VectorReduceSinkOperator: ClassCastException: ~StandardUnionObjectInspector cannot be cast to ~IntWritable (Matt McCline reviewed by Prasanth Jayachandran)

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HIVE-7957: Revisit event version handling in dynamic partition pruning on Tez (Gunther Hagleitner, reviewed by Vikram Dixit K)

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HIVE-7960: Upgrade to Hadoop 2.5 (Gunther Hagleitner, reviewed by Brock Noland)

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HIVE-8169 Windows: alter table ..set location from hcatalog failed with NullPointerException (Xiaobing Zhou via Alan Gates)


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