minor fixes and improvements

git-svn-id: svn://svn.cy55.de/Zope3/src/loops/trunk@1762 fd906abe-77d9-0310-91a1-e0d9ade77398

browser/concept_related.pt

@@ -25,7 +25,8 @@
                          summary string:Currently assigned objects;
                          legend string:Child Concepts;
                          showPredicate string:yes;
-                         buttonText string:Remove Children;">
+                         buttonText string:Remove Children;"
+             style="clear:left">
           <metal:children use-macro="views/relation_macros/listing" />
       </div>
 

common.py

@@ -79,7 +79,7 @@ class AdapterBase(object):
             raise AttributeError('%s: %s' % (self, attr))
 
     def __eq__(self, other):
-        if other is None:
+        if not isinstance(other, AdapterBase):
             return False
         return self.context == other.context