Merge pull request #154 from tp6vup54/master

Fix the bug that the return of request.get_data() is not string.

examples/webhook_examples/webhook_flask_echo_bot.py

@@ -48,7 +48,7 @@ def index():
 @app.route(WEBHOOK_URL_PATH, methods=['POST'])
 def webhook():
     if flask.request.headers.get('content-type') == 'application/json':
-        json_string = flask.request.get_data()
+        json_string = flask.request.get_data().decode('utf-8')
         update = telebot.types.Update.de_json(json_string)
         bot.process_new_messages([update.message])
         return ''