移动安装目录，支持根目录index.php访问，也可以像tp5一样只对外开放crmeb一个目录

crmeb/install/index.php

@@ -127,14 +127,14 @@ switch ($step) {
 
         
         $folder = array(
-            '/crmeb/install',
-            '/public/uploads',
-            '/runtime',
-            '/runtime/cache',
-	    	'/runtime/temp',
-	    	'/runtime/log',
-            '/application/database.php',
-            '/application/config.php',
+            'crmeb/install',
+            'public/uploads',
+            'runtime',
+            'runtime/cache',
+	    	'runtime/temp',
+	    	'runtime/log',
+            'application/database.php',
+            'application/config.php',
         );
         include_once ("./templates/step2.php");
         exit();