기본 stylesheet를 common.css로 변경

twe/main.php

@@ -64,7 +64,7 @@ $scenario = getScenario();
 <link href="css/normalize.css" rel="stylesheet">
 <link href="css/common.css" rel="stylesheet">
 <link href="css/main.css" rel="stylesheet">
-<link rel=stylesheet href=stylesheet.php type=text/css>
+<link rel=stylesheet href=css/common.css type=text/css>
 
 <?php require('analytics.php'); ?>
 </head>