fix node test to be resilient of state.json change

cli/tests/fixtures/node.py

@@ -43,5 +43,6 @@ def slave_fixture():
             "mem": 0.0,
             "ports": ("[1025-2180, 2182-3887, 3889-5049, 5052-8079, " +
                       "8082-8180, 8182-65535]")
-        }
+        },
+        "version": "0.0.0"
     }

cli/tests/integrations/test_node.py

@@ -185,6 +185,7 @@ def _get_schema(slave):
     schema['properties']['offered_resources']['required'].remove('ports')
     schema['properties']['attributes']['additionalProperties'] = True
 
+    schema['required'].remove('version')
     return schema