refactor vMME cord-3.0

Change-Id: I234b0ecf869de31fa7dbe76a2e3db4e2fc0b4e6b
diff --git a/xos/tosca/resources/vmmeservice.py b/xos/tosca/resources/vmmeservice.py
index e6280da..3001eac 100644
--- a/xos/tosca/resources/vmmeservice.py
+++ b/xos/tosca/resources/vmmeservice.py
@@ -1,7 +1,7 @@
-from services.vmme.models import VMMEService
 from service import XOSService
+from services.vmme.models import VMMEService
 
 class XOSVMMEService(XOSService):
 	provides = "tosca.nodes.VMMEService"
 	xos_model = VMMEService
-	copyin_props = ["view_url", "icon_url", "enabled", "published", "public_key", "private_key_fn", "versionNumber"]
\ No newline at end of file
+	copyin_props = ["view_url", "icon_url", "enabled", "published", "public_key", "private_key_fn", "versionNumber"]
diff --git a/xos/tosca/resources/vmmetenant.py b/xos/tosca/resources/vmmetenant.py
index 2a6e6d4..2ae223c 100644
--- a/xos/tosca/resources/vmmetenant.py
+++ b/xos/tosca/resources/vmmetenant.py
@@ -1,18 +1,19 @@
-from services.vmme.models import VMMETenant, VMMEService
 from xosresource import XOSResource
+from core.models import Tenant, Service
+from services.vmme.models import VMMETenant
 
 class XOSVMMETenant(XOSResource):
     provides = "tosca.nodes.VMMETenant"
     xos_model = VMMETenant
-    copyin_props = ["tenant_message", "image_name"]  
-    name_field = None  
+    name_field = None 
+    copyin_props = ("tenant_message",) 
 
     def get_xos_args(self, throw_exception=True):
         args = super(XOSVMMETenant, self).get_xos_args()
 
-        provider_name = self.get_requirement("tosca.relationships.MemberOfService", throw_exception=throw_exception)
+        provider_name = self.get_requirement("tosca.relationships.TenantOfService", throw_exception=throw_exception)
         if provider_name:
-            args["provider_service"] = self.get_xos_object(VMMEService, throw_exception=throw_exception, name=provider_name)
+            args["provider_service"] = self.get_xos_object(Service, throw_exception=throw_exception, name=provider_name)
 
         return args