Python-telegram-bot

- Faulty PyPI release

**2017-05-29**

- Avoid confusion with user's ``urllib3`` by renaming vendored ``urllib3`` to ``ptb_urllib3``

**2017-05-19**

- Add support for ``User.language_code``
- Fix ``Message.text_html`` and ``Message.text_markdown`` for messages with emoji

**2017-05-19**

- Add support for Bot API 2.3.1
- Add support for ``deleteMessage`` API method
- New, simpler API for ``JobQueue`` - :pr:`484`
- Download files into file-like objects - :pr:`459`
- Use vendor ``urllib3`` to address issues with timeouts
- The default timeout for messages is now 5 seconds. For sending media, the default timeout is now 20 seconds.
- String attributes that are not set are now ``None`` by default, instead of empty strings
- Add ``text_markdown`` and ``text_html`` properties to ``Message`` - :pr:`507`
- Add support for Socks5 proxy - :pr:`518`
- Add support for filters in ``CommandHandler`` - :pr:`536`
- Add the ability to invert (not) filters - :pr:`552`
- Add ``Filters.group`` and ``Filters.private``
- Compatibility with GAE via ``urllib3.contrib`` package - :pr:`583`
- Add equality rich comparision operators to telegram objects - :pr:`604`
- Several bugfixes and other improvements
- Remove some deprecated code

**2017-04-17**

- Hotfix release due to bug introduced by urllib3 version 1.21

**2016-12-11**

- Implement API changes of November 21st (Bot API 2.3)
- ``JobQueue`` now supports ``datetime.timedelta`` in addition to seconds
- ``JobQueue`` now supports running jobs only on certain days
- New ``Filters.reply`` filter
- Bugfix for ``Message.edit_reply_markup``
- Other bugfixes

**2016-10-25**