Make robuster and simpler cration of config file

Now SQL password can contains any character it will work and we can put html code inside the info message without breaking the conf.php file.

system/Conf.php

@@ -75,11 +75,9 @@ class Conf
     }
     
     static function saveConfFile($conf = array()) {
-        $out = '<?php $conf = array(';
-        
-        foreach($conf as $key => $value) 
-            $out .= "'".$key."' => '". $value . "',"."\n";
-        $out .= ');';
+        $out = "<?php\n"
+                .'$conf = '.var_export($conf, true).";\n"
+                ."?>\n";
         
         $fp = fopen(DOCUMENT_ROOT.self::$conf_path.'/conf.php', 'w');
         fwrite($fp, $out);