feat: Remove bluebird + depd (#987)

* feat: Remove bluebird

* docs: Update

* remove depd ans use node native deprecate msg warnings

* fix: correct util import name

* remove: contributor dev dependencie and add list of contributors in the readme

Author: danielperez9430

README.md

@@ -92,6 +92,15 @@ Some things built using this library that might interest you:
 * [node-telegram-keyboard-wrapper](https://github.com/alexandercerutti/node-telegram-keyboard-wrapper): A wrapper to improve keyboards structures creation through a more easy-to-see way (supports Inline Keyboards, Reply Keyboard, Remove Keyboard and Force Reply)
 * [beetube-bot](https://github.com/kodjunkie/beetube-bot): A telegram bot for music, videos, movies, EDM tracks, torrent downloads, files and more.
 
+
+## Contributors
+
+<p align="center">
+  <a href="https://github.com/yagop/node-telegram-bot-api/graphs/contributors">
+    <img src="https://contrib.rocks/image?repo=yagop/node-telegram-bot-api" />
+  </a>
+</p>
+
 ## License
 
 **The MIT License (MIT)**

doc/api.md

@@ -123,7 +123,6 @@ TelegramBot
     * _static_
         * [.errors](#TelegramBot.errors) : <code>Object</code>
         * [.messageTypes](#TelegramBot.messageTypes) : <code>[ &#x27;Array&#x27; ].&lt;String&gt;</code>
-        * [.Promise](#TelegramBot.Promise)
 
 <a name="new_TelegramBot_new"></a>
 
@@ -1847,23 +1846,6 @@ The different errors the library uses.
 The types of message updates the library handles.
 
 **Kind**: static property of [<code>TelegramBot</code>](#TelegramBot)  
-<a name="TelegramBot.Promise"></a>
-
-### TelegramBot.Promise
-Change Promise library used internally, for all existing and new
-instances.
-
-**Kind**: static property of [<code>TelegramBot</code>](#TelegramBot)  
-
-| Param | Type |
-| --- | --- |
-| customPromise | <code>function</code> | 
-
-**Example**  
-```js
-const TelegramBot = require('node-telegram-bot-api');
-TelegramBot.Promise = myPromise;
-```
 * * *
 
 

index.js

@@ -5,7 +5,7 @@
  */
 const majorVersion = parseInt(process.versions.node.split('.')[0], 10);
 if (majorVersion <= 5) {
-  const deprecate = require('depd')('node-telegram-bot-api');
+  const deprecate = require('./src/utils').deprecate;
   deprecate('Node.js v5.x and below will no longer be supported in the future');
   module.exports = require('./lib/telegram');
 } else {