PEP8, pylint cleanups and removal of relative imports

apps/navigation/api.py

@@ -63,7 +63,7 @@ def register_model_list_columns(model, columns):
         model_list_columns[model].extend(columns)
     else:
         model_list_columns[model] = copy.copy(columns)
-        
+
 
 def register_sidebar_template(source_list, template_name):
     for source in source_list:

apps/navigation/templatetags/navigation_tags.py

@@ -62,7 +62,7 @@ class NavigationNode(Node):
 
 @register.tag
 def main_navigation(parser, token):
-    args = token.split_contents()
+    #args = token.split_contents()
 
 #    if len(args) != 3 or args[1] != 'as':
 #        raise TemplateSyntaxError("'get_all_states' requires 'as variable' (got %r)" % args)