Author: Prashant Sharma <prashant.s@imaginea.com>
Author: Prashant Sharma <scrapcodes@gmail.com>
Closes#262 from ScrapCodes/SPARK-1336/ReduceVerbosity and squashes the following commits:
87dfa54 [Prashant Sharma] Further reduction in noise and made pyspark tests to fail fast.
811170f [Prashant Sharma] Reducing the ouput of run-tests script.