align with TOSCA DSL of 3.1
align with TOSCA DSL of 3.1

cloudify-cosmo/cloudify-nodecellar-example,ShayHassidim/cloudify-nodecellar-example,yoramw/cloudify-nodecellar-example,ShayHassidim/cloudify-nodecellar-example,yoramw/cloudify-nodecellar-example,EarthmanT/cloudify-nodecellar-example,cloudify-cosmo/cloudify-nodecellar-example,EarthmanT/cloudify-nodecellar-example