update selectors

hooks.py

+from cubicweb.selectors import implements
 from cubicweb.sobjects.notification import ContentAddedView
 
 class BlogEntryAddedView(ContentAddedView):
     """get notified from new blogs"""
@@ -1,8 +2,8 @@
 from cubicweb.sobjects.notification import ContentAddedView
 
 class BlogEntryAddedView(ContentAddedView):
     """get notified from new blogs"""
-    accepts = ('BlogEntry',)
+    __select__ = implements('BlogEntry',)
     content_attr = 'content'
 
     def subject(self):