Rearchitect for different types of response

src/repl.php

@@ -8,11 +8,15 @@ $room_id = BLUE_ROOM;
 $msg_id = 0;
 
 echo "Starting test REPL\n";
+
+foreach ($handlers as $handler) {
+    $handler->PrintToScreen = true;
+}
 do {
     echo $msg_id, ' > ';
     $input = fread(STDIN, 80); // Read up to 80 characters or a newline
     $trimmed = trim($input);
 
-    echo reply_user($room_id, $msg_id, $trimmed) , "\n";
+    echo reply_user($room_id, $msg_id, $trimmed, "th") , "\n";
     $msg_id++;
 } while($trimmed !== "exit");