src: Load transpiled code for Node 5

References:
  * Bug-Report #297: https://github.com/yagop/node-telegram-bot-api/issues/297
  * Bug-Report-by: @jehy
  * PR  #298: https://github.com/yagop/node-telegram-bot-api/pull/298
  * PR-by: @jehy

index.js

@@ -1,12 +1,12 @@
 /**
- * If running on Nodejs 4.x and below, we load the transpiled code.
+ * If running on Nodejs 5.x and below, we load the transpiled code.
  * Otherwise, we use the ES6 code.
- * We are deprecating support for Node.js v4.x and below.
+ * We are deprecating support for Node.js v5.x and below.
  */
 const majorVersion = parseInt(process.versions.node.split('.')[0], 10);
-if (majorVersion <= 4) {
+if (majorVersion <= 5) {
   const deprecate = require('depd')('node-telegram-bot-api');
-  deprecate('Node.js v4.x and below will no longer be supported in the future');
+  deprecate('Node.js v5.x and below will no longer be supported in the future');
   module.exports = require('./lib/telegram');
 } else {
   module.exports = require('./src/telegram');

test/telegram.js

@@ -49,12 +49,12 @@ before(function beforeAll() {
 
 describe('module.exports', function moduleExportsSuite() {
   const nodeVersion = parseInt(process.versions.node.split('.')[0], 10);
-  it('is loaded from src/ on Node.js v5+ and above', function test() {
+  it('is loaded from src/ on Node.js v6+ and above', function test() {
-    if (nodeVersion <= 4) this.skip(); // skip on Node.js v4 and below
+    if (nodeVersion <= 5) this.skip(); // skip on Node.js v5 and below
     assert.equal(TelegramBot, require('../src/telegram'));
   });
-  it('is loaded from lib/ on Node.js v4 and below', function test() {
+  it('is loaded from lib/ on Node.js v5 and below', function test() {
-    if (nodeVersion > 4) this.skip(); // skip on newer versions
+    if (nodeVersion > 5) this.skip(); // skip on newer versions
     assert.equal(TelegramBot, require('../lib/telegram'));
   });
 });