Merge pull request #1 from MBoretto/new_command_structure_alpha

fix use command

src/Commands/Command.php

@@ -10,6 +10,7 @@
 
 namespace Longman\TelegramBot\Commands;
 
+use Longman\TelegramBot\DB;
 use Longman\TelegramBot\Telegram;
 use Longman\TelegramBot\Entities\Chat;
 use Longman\TelegramBot\Entities\Update;