Replace 7 at beginning of chat massages to /

Signed-off-by: Lixfel <agga-games@gmx.de>

src/de/steamwar/bungeecore/listeners/ChatListener.java

@@ -28,12 +28,25 @@ public class ChatListener extends BasicListener {
 
     @EventHandler
     public void onChatEvent(ChatEvent e){
+        sanitize7(e);
         if(e.getMessage().startsWith("/"))
             onCommand(e);
         else
             onChat(e);
     }
 
+    /*
+    * Replaces 7(7)command to /(/)command.
+    * */
+    private void sanitize7(ChatEvent e){
+        String begin = e.getMessage().split(" ", 2)[0];
+        if(begin.startsWith("7") && begin.substring(1).matches("[A-Za-z]+")){
+            e.setMessage("/" + e.getMessage().substring(1));
+        }else if(begin.startsWith("77") && begin.substring(2).matches("[A-Za-z]+")){
+            e.setMessage("//" + e.getMessage().substring(2));
+        }
+    }
+
     private void onCommand(ChatEvent e){
         String [] command = e.getMessage().split(" ");
         if(command[0].contains(":")){