Merge pull request #43 from sundeepn/fifocache

Modified FIFO Cache policy
Merge pull request #304 from sundeepn/fifopolicy

Merge pull request #43 from sundeepn/fifocache
Fix issue with SCALA_VERSION in run-tests-from-scratch
Add option to run all Hive tests.
Add split tests capability to run-tests-from-scratch
Re-add all tests file from Hive-11 and option to run them in run-tests-from-scratch
Fix issue with reading tests from TEST_FILE in TestSharkCliDriver
Add ptest2_shark - framework for parallel testing