src/telegram: Add API v3 new update types and message sub-types (#333)

References:

    * API changelog: https://core.telegram.org/bots/api-changelog#may-18-2017
    * PR: https://github.com/yagop/node-telegram-bot-api/pull/333
    * PR-by: @kamikazechaser 
    * API v3: https://github.com/yagop/node-telegram-bot-api/issues/332

doc/usage.md

@@ -15,7 +15,8 @@
      events will **ALSO** be emitted: `text`, `audio`, `document`, `photo`,
      `sticker`, `video`, `voice`, `contact`, `location`,
      `new_chat_participant`, `left_chat_participant`, `new_chat_title`,
-     `new_chat_photo`, `delete_chat_photo`, `group_chat_created`
+     `new_chat_photo`, `delete_chat_photo`, `group_chat_created`,
+     `successful_payment`, `invoice`
 1. `callback_query`: Received a new incoming [Callback Query][callback-query]
 1. `inline_query`: Received a new incoming [Inline Query][inline-query]
 1. `chosen_inline_result`: Received result of an inline query i.e. [ChosenInlineResult][chosen-inline-result]
@@ -26,6 +27,8 @@
 1. `edited_channel_post`: Received a new version of a channel post that is known to the bot and was edited
   1. `edited_channel_post_text`
   1. `edited_channel_post_caption`
+1. `shipping_query`: Received a new incoming shipping query
+1. `pre_checkout_query`: Received a new  incoming pre-checkout query
 1. `polling_error`: Error occurred during polling. See [polling errors](#polling-errors).
 1. `webhook_error`: Error occurred handling a webhook request. See [webhook errors](#webhook-errors).
 

src/telegram.js

@@ -22,7 +22,7 @@ const deprecate = require('depd')('node-telegram-bot-api');
 const _messageTypes = [
   'text', 'audio', 'document', 'photo', 'sticker', 'video', 'voice', 'contact',
   'location', 'new_chat_participant', 'left_chat_participant', 'new_chat_title',
-  'new_chat_photo', 'delete_chat_photo', 'group_chat_created'
+  'new_chat_photo', 'delete_chat_photo', 'group_chat_created', 'successful_payment', 'invoice'
 ];
 
 // enable cancellation
@@ -454,6 +454,8 @@ class TelegramBot extends EventEmitter {
     const inlineQuery = update.inline_query;
     const chosenInlineResult = update.chosen_inline_result;
     const callbackQuery = update.callback_query;
+    const shippingQuery = update.shipping_query;
+    const preCheckoutQuery = update.pre_checkout_query;
 
     if (message) {
       debug('Process Update message %j', message);
@@ -524,6 +526,12 @@ class TelegramBot extends EventEmitter {
     } else if (callbackQuery) {
       debug('Process Update callback_query %j', callbackQuery);
       this.emit('callback_query', callbackQuery);
+    } else if (shippingQuery) {
+      debug('Process Update shipping_query %j', shippingQuery);
+      this.emit('shipping_query', shippingQuery);
+    } else if (preCheckoutQuery) {
+      debug('Process Update pre_checkout_query %j', preCheckoutQuery);
+      this.emit('pre_checkout_query', preCheckoutQuery);
     }
   }