CLOUDIFY-2454 added logs fetching and fixed events polling
CLOUDIFY-2454 added executions list to api
Merge branch 'develop' into feature/CLOUDIFY-2454-python-logger
CLOUDIFY-2454 removed sudo from travis config
Merge pull request #17 from CloudifySource/feature/CLOUDIFY-2454-python-logger

CLOUDIFY-2454-python-logger