Add zip partitions interface

(the previous commit only renamed the file)

Fix issues with streaming test cases after yarn branch merge

The current code supports 2, 3 or 4 arguments but can be extended
to more arguments if required.

SPARK-739 Have quickstart standlone job use README

test failure on Hadoop 2.0)

Manual merge of yarn branch to trunk

Patch from Thomas Graves to improve the YARN Client, and move to more production ready hadoop yarn branch