修正 Parser的路径

规范 Slog的编码规则

library/think/db/driver.php

@@ -17,7 +17,7 @@ use think\Debug;
 use think\Exception;
 use think\Lang;
 use think\Log;
-use think\slog;
+use think\Slog;
 
 abstract class Driver
 {

library/think/slog.php

@@ -4,7 +4,7 @@
  * @author luofei614<weibo.com/luofei614>
  */
 namespace think;
-class slog
+class Slog
 {
     public static $start_time=0;
     public static $start_memory=0;