CLOUDIFY-1826 remove unused import
CLOUDIFY-1826 added comments to jython classes
CLOUDIFY-1826 move event pasrsing to main thread. this way we will see the exception thrown in case the parsing fail, and it will fail the test quicker
CLOUDIFY-1826 deleted pid files that were commited by mistake
CLOUDIFY-1826 use queue.take() instead of poll with timeout. since this is the only blocking operation, and we have a test timeout, there is no need for a poll timeout