HIVE-7397 : Set the simple fetch task conversion to more with a default threshold of 1Gb

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1612847 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5456 : Queries fail on avro backed table with empty partition (Chaoyu Tang via Szehon)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1612977 13f79535-47bb-0310-9956-ffa450edef68
HIVE-5160 : HS2 should support .hiverc (Dong Chen via Szehon)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1612978 13f79535-47bb-0310-9956-ffa450edef68
HIVE-7422 : Array out of bounds exception involving ql.exec.vector.expressions.aggregates.gen.VectorUDAFAvgDouble (Matt McCline via Jitendra Nath Pandey)

git-svn-id: https://svn.apache.org/repos/asf/hive/trunk@1612988 13f79535-47bb-0310-9956-ffa450edef68