optimizer의 변경으로 인해 기존에 캐시된 파일들을 모두 재캐쉬하도록 기능 수정

git-svn-id: http://xe-core.googlecode.com/svn/sandbox@3460 201d5d3c-b55e-5fd7-737f-ddc643e51545

classes/optimizer/Optimizer.class.php

@@ -74,6 +74,8 @@
         function doOptimizedFile($filename, $targets, $type) {
             if(!file_exists($filename)) return $this->makeOptimizedFile($filename, $targets, $type);
 
+            if(filemtime($filename) < filemtime('./classes/optimizer/Optimizer.class.php')) return $this->makeOptimizedFile($filename, $targets, $type);
+
             $mtime = filemtime($filename);
             foreach($targets as $file) {
                 if($mtime < filemtime($file)) return $this->makeOptimizedFile($filename, $targets, $type);