doorboy: fix enable on new tokens

inventory-app/doorboy.py

@@ -34,7 +34,7 @@ def view_doorboy_claim(event_id):
       "inventory.owner.username": { "$exists": False }
     }, {
       "$set": {
-        "token.enabled": datetime.utcnow(),
+        "token.enabled": True,
         "inventory.owner.display_name": user["name"],
         "inventory.owner.username": user["username"]
       }