apache/spark — pull request #3814 by scwf (2014-12-27 14:22:02+00:00)
Title: [SPARK-4975][SQL] Fix HiveInspectorSuite test failure

HiveInspectorSuite test failure：
[info] - wrap / unwrap null, constant null and writables *** FAILED *** (21 milliseconds)
[info] 1 did not equal 0 (HiveInspectorSuite.scala:136)
this is because the origin date(is 3914-10-23) not equals the date returned by unwrap(is 3914-10-22).

Setting TimeZone and Locale fix this.
Another minor change here is change ```def checkValues(v1: Any, v2: Any): Unit``` to ```def checkValue(v1: Any, v2: Any): Unit ```