Merge pull request #89 from truongdatnhan/master

Fixing bugs, Clean up code, Upgrade to new Syntax

src/main/java/tools/mapletools/MobBookIndexer.java

@@ -3,7 +3,6 @@ package tools.mapletools;
 import provider.wz.WZFiles;
 
 import java.io.*;
-import java.nio.charset.StandardCharsets;
 import java.nio.file.Files;
 import java.nio.file.Path;
 import java.sql.Connection;