old_contents: 
  from django.conf.urls.defaults import patterns, url
  
  
  # Wiki patterns.
  urlpatterns = patterns("mezzanine_wiki.views",
      url("^$", "wiki_index", name="wiki_index"),
      url("^list:pages/$", "wiki_page_list", name="wiki_page_list"),
      url("^tag:(?P<tag>.*)/$", "wiki_page_list", name="wiki_page_list_tag"),
      url("^category:(?P<category>.*)/$", "wiki_page_list",
          name="wiki_page_list_category"),
      url("^author:(?P<username>.*)/$", "wiki_page_list",
          name="wiki_page_list_author"),
      url("^(?P<slug>.*)/history/$", "wiki_page_history",
          name="wiki_page_history"),
      url("^(?P<slug>.*)/edit/$", "wiki_page_edit", name="wiki_page_edit"),
      url("^(?P<slug>.*)/rev/(?P<rev_id>\d+)/$", "wiki_page_revision",
          name="wiki_page_revision"),
      url("^(?P<slug>.*)/$", "wiki_page_detail", name="wiki_page_detail"),
  )
  
new_contents: 
  from django.conf.urls.defaults import patterns, url
  
  
  # Wiki patterns.
  urlpatterns = patterns("mezzanine_wiki.views",
      url("^$", "wiki_index", name="wiki_index"),
      url("^list:pages/$", "wiki_page_list", name="wiki_page_list"),
      url("^tag:(?P<tag>.*)/$", "wiki_page_list", name="wiki_page_list_tag"),
      url("^category:(?P<category>.*)/$", "wiki_page_list",
          name="wiki_page_list_category"),
      url("^author:(?P<username>.*)/$", "wiki_page_list",
          name="wiki_page_list_author"),
      url("^(?P<slug>.*)/history/$", "wiki_page_history",
          name="wiki_page_history"),
      url("^(?P<slug>.*)/history/(?P<rev_id>\d+)/$", "wiki_page_revision",
          name="wiki_page_revision"),
      url("^(?P<slug>.*)/edit/$", "wiki_page_edit", name="wiki_page_edit"),
      url("^(?P<slug>.*)/$", "wiki_page_detail", name="wiki_page_detail"),
  )
  
subject: update urls