CLOUDIFY-2124 add workflow ref support to workflows relationships
Merge remote-tracking branch 'remotes/origin/feature/CLOUDIFY-2083-relationships-modifications' into feature/CLOUDIFY-2124-relationship-wf-reference

Conflicts:
	orchestrator/src/test/java/org/cloudifysource/cosmo/dsl/AbstractDSLProcessorTest.java
CLOUDIFY-2124 relationship workflow reference
Merge branch 'develop' into feature/CLOUDIFY-2124-relationship-wf-reference
CLOUDIFY-2124 relationship workflow ref
Merge branch 'develop' into feature/CLOUDIFY-2124-relationship-wf-reference
Merge pull request #78 from CloudifySource/feature/CLOUDIFY-2124-relationship-wf-reference

CLOUDIFY-2124-relationship-wf-reference