Fixing mistake highlighted by Mikhail Kashkin at: http://blog.ivandem…

…arino.me/2010/11/26/Minification-and-Templating-for-Bloggart#comment-164010391

Why was that call there? Because "minifier.py" was developed for "txty.mobi" and... I forgot it there :P

minifier.py

@@ -25,8 +25,7 @@ def get( self, requestedCssFilename ):
       cssPath = os.path.join( os.path.dirname( __file__ ), 'themes/%s/%s' % (config.theme, requestedCssFilename) );
       if ( not os.path.exists(cssPath) ):
          logging.error("CSS not found: "+cssPath);
-         # Client Error 4xx - 404 Not Found
-         util.setErrorResponse(self, 404);
+         self.error(404); # Client Error 4xx - 404 Not Found
          return;
 
       cssRenderingResult = None;
@@ -70,8 +69,7 @@ def get( self, requestedJsFilename ):
       jsPath = os.path.join( os.path.dirname( __file__ ), 'themes/%s/%s' % (config.theme, requestedJsFilename) );
       if ( not os.path.exists(jsPath) ):
          logging.error("Javascript not found: "+jsPath);
-         # Client Error 4xx - 404 Not Found
-         util.setErrorResponse(self, 404);
+         self.error(404); # Client Error 4xx - 404 Not Found
          return;
 
       jsRenderingResult = None;