Revert full_load to load because OrderedYaml rewrite

CHANGELOG.md

-## Future
+## 0.4.8 (2020-03-XX)
 ### Release Notes
 * Fix pool edit
-
+* Fix Default node type
+* Fix YAML warning
+* Bump ansible to 2.9.6
 
 ## 0.4.7 (2019-12-03)
 ### Release Notes

tower/api/service.py

@@ -34,7 +34,7 @@ class ServiceAPI(API):
             if not os.path.exists(path):
                 continue
             with open(path) as f:
-                descr = yaml.full_load(f, OrderedDictYAMLLoader)
+                descr = yaml.load(f, OrderedDictYAMLLoader)
                 if not descr:
                     continue
                 if "services" not in descr or not descr["services"]: