CloudifyContext.set_stopped() stub // fix MockCloudifyContext
MockCloudifyContext - add "related"
Add ContextCapabilities.__str__(), CloudifyContext.__str__()
Fix: eliminate mutable objects in params
flake8
Merge pull request #17 from Fewbytes/context-set-stopped-sub

CloudifyContext.set_stopped() stub // fix MockCloudifyContext
Merge branch 'develop' into feature/CLOUDIFY-2425-riemann-multi-deployments

Conflicts:
	cloudify/context.py
	cloudify/mocks.py
CLOUDIFY-2425 added started,stopped lifecycle states to context