Fixed #216. WikiLink Extension actually accepts configs.

Author: Waylan Limberg

markdown/extensions/wikilinks.py

@@ -98,9 +98,9 @@ def __init__(self, configs):
  'html_class' : ['wikilink', 'CSS hook. Leave blank for none.'],
  'build_url' : [build_url, 'Callable formats URL from label.'],
  }
- 
+ configs = configs or {}
  # Override defaults with user settings
- for key, value in configs :
+ for key, value in configs.items :
  self.setConfig(key, value)
 
  def extendMarkdown(self, md, md_globals):