Opentok

- Added auto-archive improvements to the `opentok.Client.create_session` method
to customize automatically created archives:
- `archive_name` parameter
- `archive_resolution` parameter
- Added the option to append to the user-agent, which can be done with
python
opentok.Client.append_to_user_agent('my-appended-string')

- Added the option to specify audio-only or video-only broadcasts with the new booleans `hasAudio` and `hasVideo`
when starting a broadcast or adding new streams to a broadcast.

- Support for end-to-end encryption (E2EE) that can be specified by a user when creating an OpenTok session.

- Support for Audio Connector API via `connect_audio_to_websocket` method

- Support for Experience Composer (Render) API
- Support for multiple archives and broadcasts in the `start_archive` and `start_broadcast` methods
- Support for low latency and DVR modes
- Documented more methods in README
- Updated some out-of-date dependencies

Added

- Mute all and mute stream functionality [192](https://github.com/opentok/Opentok-Python-SDK/pull/192), [#197](https://github.com/opentok/Opentok-Python-SDK/pull/197), [#199](https://github.com/opentok/Opentok-Python-SDK/pull/199)
- Added selective stream feature to `Archive` and `Broadcast` objects. [196](https://github.com/opentok/Opentok-Python-SDK/pull/196)
- Added PlayDTMF functionality to `SipCall` object [194](https://github.com/opentok/Opentok-Python-SDK/pull/194)
- Added SIP video outbound flag to `SipCall.dial` method [194](https://github.com/opentok/Opentok-Python-SDK/pull/194)
- Added the ObserveForceMute flag to `SipCall.dial` method [193](https://github.com/opentok/Opentok-Python-SDK/pull/193)

Added

- Added mute/muteall functionality