* Added methods to generate the original markdown/html formatted string from the entities contained in an update
* Added
* Moved the html/markdown parsing methods to `Message`
* Moved extract_* methods from helpers to the appropriate location
* Refactored text_markdown and text_html
* Refactored text_markdown and text_html for efficiency
* Fixed method call in conversationhandler
* Fixed method call in handler
* Fixed `make test` command on windows systems
* Improved method documentation
* bot.py: add create_references method
* create bot reference in webhook handler, use create_references on new updates
* message.py: implement reply_text
* echobot2.py: use Message.reply_text
* fix create_references in webhook handler
* add some more instance methods
* Chat.kick_member and unban_member
* bot.py: Create bot references in outgoing messages
* add tests for everything testable
* test_updater.py: add create_references method to MockBot
* remove Bot.create_references and refactor TelegramObject.de_json to take the additional parameter bot
* List bot as named kwarg where used
* file.py: Use Bot.request property instead of Bot._request attr
