Initialise rating as float to avoid error when not found

jmeosbn · jmeosbn · commit c2a1328d7228 · 2017-12-24T18:51:44.000Z
diff --git a/Contents/Code/__init__.py b/Contents/Code/__init__.py
@@ -471,7 +471,7 @@ def update(self, metadata, media, lang, force=False):
             pass
         
         date=None
-        rating=None
+        rating=0.0
         series=''
         genre1=None
         genre2=None
