CLOUDIFY-2049 Fail test if workflow failed
Fix path to python linux default
CLOUDIFY-2073 support json returned from task. This is intermidiate resolution until we receive result from celery and not celery event
Added service name to logged event
Removed unused files
CLOUDIFY-2049 wait for process to exit before exit code check
CLOUDIFY-2073 fix tests
CLOUDIFY-2049 Make workflow framework tasks single process, to allow in memory mocks, and avoid race conditions