CFY-785 removed blueprint source api
CFY-785 remove blueprint source api and use new rest client
Merge branch 'develop' into feature/CFY-785-remove-blueprint-source-api

Conflicts:
	rest-service/manager_rest/resources.py
	tests/testenv/__init__.py
	tests/workflow_tests/test_validate_dsl.py
	tests/workflow_tests/test_workflow.py
CFY-785 use status call for testing if rest service is up
CFY-785 removed unused test
CFY-785 flake8
Merge pull request #52 from cloudify-cosmo/feature/CFY-785-remove-blueprint-source-api

Feature/cfy 785 remove blueprint source api