Textworld

Fixed
- Fix security issue [[301](https://github.com/microsoft/TextWorld/pull/301)]
- Fix requirements and Inform7 links [[303](https://github.com/microsoft/TextWorld/pull/303)]
- Fix gym version [[305](https://github.com/microsoft/TextWorld/pull/305)]
- Fix documentation [[306](https://github.com/microsoft/TextWorld/pull/306)]
- Rename main branch and references to it [[307](https://github.com/microsoft/TextWorld/pull/307)]
- Use functools.partial instead of lambda functions. It's more multiprocessing friendly. [[294](https://github.com/microsoft/TextWorld/pull/294)]
- Wait for visualization server to be ready before connecting with Selenium. [[294](https://github.com/microsoft/TextWorld/pull/294)]
- Use constants' type as their name instead of `None`. [[293](https://github.com/microsoft/TextWorld/pull/293)]

Removed

- Remove MacOS 10.14 CI. [[294](https://github.com/microsoft/TextWorld/pull/294)]

Added

- Allow to provide list of seeds in `AsyncBatchEnv` and `SyncBatchEnv`. [[290](https://github.com/microsoft/TextWorld/pull/290)]

Fixed

- Typo in `TextworldBatchGymEnv.reset`: `self.ob` instead of `self.obs`. [[291](https://github.com/microsoft/TextWorld/pull/291)]

Fixed

- Update notebooks. [[285](https://github.com/microsoft/TextWorld/pull/285)]
- Fix Azure pipelines. [[283](https://github.com/microsoft/TextWorld/pull/283)]
- Extract description and inventory from Jericho. [[278](https://github.com/microsoft/TextWorld/pull/278)]