CFY-972 blueprint_id parameter is now mandatory for blueprint upload. the POST method of '/blueprints' has been removed, upload can now only be made via PUT to /blueprints/<blueprint-id>'
CFY-972 updated REST service according to DSL changes
CFY-972 updated REST service and tests according to DSL changes
CFY-972 flake8 fixes
Merge branch 'CFY-972-DSL-alignment-with-tosca' into CFY-1049-policies