[2/2] incubator-systemml git commit: Use Apache Commons CLI to parse command line arguments in DMLScript

Use Apache Commons CLI to parse command line arguments in DMLScript - Added unit tests - changed scripts to accept "-config " instead of "-config=" - Removed DMLScriptTest{1,2} - Modified bin/systemml script to print a better help message - Removed extraneous ZPackageSuite for DMLScriptTest{1,2}

[2/2] incubator-systemml git commit: Use Apache Commons CLI to parse command line arguments in DMLScript

Use Apache Commons CLI to parse command line arguments in DMLScript - Uses Apache Commons CLI 1.2 to parse command line options - Known limitation - strips arguments of leading and trailing double quotes - Changed scripts to accept "-config " instead of "-config=" - Instead of "-gpu