Fix error in details command (#75)

Author: Katzmann1983

pytr/details.py

@@ -72,7 +72,7 @@ def stock_details(self):
 
     def news(self, relevant_days=30):
         since = datetime.now() - timedelta(days=relevant_days)
-        if not hasattr(news, 'neonNews'):
+        if not hasattr(self, 'neonNews'):
             return
         for news in self.neonNews:
             newsdate = datetime.fromtimestamp(news['createdAt'] / 1000.0)