CFY-145 update system tests to not explicitly pass openstack related configuration
Merge pull request #9 from cloudify-cosmo/feature/CFY-145-provider-context

Simplify blueprints
CFY-643 modified node_state to node_instance
Merge pull request #10 from cloudify-cosmo/feature/CFY-643-changes-to-node-state

CFY-643 modified node_state to node_instance