Add updated py4j to PYTHON_PATH so batch workflow executor works
Add updated py4j to PYTHON_PATH so batch workflow executor works

In spark 2.0.0 they use 0.10.1. In spark 2.0.2 they use 0.10.3

Change-Id: Ifd4699d945fea3e208957e0824f5f8f17bafa1b4

deepsense-io/seahorse-workflow-executor,deepsense-io/seahorse-workflow-executor,deepsense-io/seahorse-workflow-executor,deepsense-io/seahorse-workflow-executor