Update to latest, add test for property deleter method.

Author: glennmatthews

pep257.py

@@ -150,7 +150,7 @@ class Method(Function):
 
     @property
     def is_public(self):
-        # Check if we are a setter method, and mark as private if so.
+        # Check if we are a setter/deleter method, and mark as private if so.
         for decorator in self.decorators:
             if decorator.name.startswith(self.name):
                 return False

test_decorators.py

@@ -230,3 +230,13 @@ def test_is_public_setter(self):
         ]
 
         assert not method.is_public
+
+    def test_is_public_deleter(self):
+        """Deleter methods are also considered private."""
+        method = self.makeMethod('methodName')
+        method.decorators = [
+            pep257.Decorator('methodName.deleter', []),
+            pep257.Decorator('another_decorator', []),
+        ]
+
+        assert not method.is_public