CLOUDIFY-1979 propagate celery logging to manager logs.
CLOUDIFY-1979 hide exception on riemann log message failure.
CLOUDIFY-1979 added cosmo.plugins logger.
Merge branch 'develop' into feature/CLOUDIFY-1979-celery-tasks-logging

Conflicts:
	orchestrator/src/main/resources/celery/app/cosmo/cloudify/tosca/artifacts/plugin/celery_worker/installer/remote/celery.py
	orchestrator/src/main/resources/celery/app/cosmo/cloudify/tosca/artifacts/plugin/worker_installer/tasks.py
	vagrant/log4j.properties
Merge branch 'develop' into feature/CLOUDIFY-1979-celery-tasks-logging

Conflicts:
	orchestrator/src/main/resources/celery/app/cosmo/cloudify/tosca/artifacts/plugin/worker_installer/remote/events.py
CLOUDIFY-1979 changed get management ip method to get cosmo properties.
Merge branch 'develop' into feature/CLOUDIFY-1979-celery-tasks-logging

Conflicts:
	orchestrator/src/main/java/org/cloudifysource/cosmo/monitor/RiemannEventsLogger.java
	orchestrator/src/main/resources/celery/app/cosmo/cloudify/tosca/artifacts/plugin/worker_installer/tasks.py
CLOUDIFY-1979 log celery logs received from riemann using a dedicated logger.
CLOUDIFY-1979 changed 'localhost' to 'management' in riemann log events for management machine.
Merge pull request #54 from CloudifySource/feature/CLOUDIFY-1979-celery-tasks-logging

CLOUDIFY-1979 celery tasks logging in manager.