some code-analysis reclamations fixed.

code-analysis OK up to: T100, S100, S101, C815, C812

plone/app/discussion/browser/traversal.py

@@ -13,8 +13,8 @@ from zope.traversing.interfaces import ITraversable
 from zope.traversing.interfaces import TraversalError
 
 
-@adapter(Interface, IBrowserRequest)
 @implementer(ITraversable)
+@adapter(Interface, IBrowserRequest)
 class ConversationNamespace(object):
     """Allow traversal into a conversation via a ++conversation++name
     namespace. The name is the name of an adapter from context to

plone/app/discussion/browser/validator.py

@@ -32,8 +32,8 @@ except ImportError:
     pass
 
 
-@adapter(Interface, IDiscussionLayer, Interface, IField, Interface)
 @implementer(IValidator)
+@adapter(Interface, IDiscussionLayer, Interface, IField, Interface)
 class CaptchaValidator(validator.SimpleFieldValidator):
     #       Object, Request, Form, Field, Widget,
     # We adapt the CaptchaValidator class to all form fields (IField)