涩图模块：图源改成regular，减少图片大小

管理员模块：支持this关键词标识本群

src/main/java/com/yutou/qqbot/QQBotApplication.java

@@ -6,7 +6,7 @@ import org.springframework.boot.autoconfigure.SpringBootApplication;
 
 @SpringBootApplication
 public class QQBotApplication {
-    public static final String version="QQBot v.1.2.16";
+    public static final String version="QQBot v.1.2.17";
     public static void main(String[] args) {
         System.out.println("version = " + version);
         SpringApplication.run(QQBotApplication.class, args);