Merge pull request #37 from makoshark/none_for_default_ns

switch namespace name to use none_or()

Author: halfak

mw/types/namespace.py

@@ -17,7 +17,7 @@ def __init__(self, id, name, canonical=None, aliases=None, case=None,
         Namespace ID : `int`
         """
 
-        self.name = str(name)
+        self.name = none_or(name, str)
         """
         Namespace name : `str`
         """