force entity roles to be lower case, resolves #45

Author: meeb

whoisit/parser.py

@@ -264,7 +264,7 @@ def extract_entities(self, entities=None):
                     self.parsed['entities'].setdefault(role, [])
                     # ignore duplicate entity per role
                     if parsed_entity not in self.parsed['entities'].get(role, []):
-                        self.parsed['entities'][role].append(parsed_entity)
+                        self.parsed['entities'][role.lower()].append(parsed_entity)
             if entity.get('entities'):
                 self.extract_entities(entities=entity.get('entities'))