Updating YAML Parser

New version of Python YAML parser needs to use safe_load or a loader argument.

parseyaml.py

@@ -1,4 +1,4 @@
 import yaml, json
 with open('./contrast_security.yaml') as f:
-    config = yaml.load(f)
+    config = yaml.safe_load(f)
     print(json.dumps(config['api']))