Add getBotName method to entity, to facilitate retrieval.

src/Entities/Entity.php

@@ -22,6 +22,7 @@ use ReflectionObject;
  * @link https://core.telegram.org/bots/api#available-types
  *
  * @method array  getRawData() Get the raw data passed to this entity
+ * @method string getBotName() Return the bot name passed to this entity
  */
 abstract class Entity
 {

src/Entities/Message.php

@@ -182,7 +182,7 @@ class Message extends Entity
             $split_cmd = explode('@', $cmd);
             if (isset($split_cmd[1])) {
                 //command is followed by name check if is addressed to me
-                if (strtolower($split_cmd[1]) === strtolower($this->bot_name)) {
+                if (strtolower($split_cmd[1]) === strtolower($this->getBotName())) {
                     return $split_cmd[0];
                 }
             } else {