Mastodon.py

------
* Fix documentation for list_accounts()
* Add note about block lists to documentation
* Add note that 2.7 support is being sunset

------
* Small fix to be friendlier to hosted apps

------
* Added support for moderation API (Thanks Gargron for the clarifications and dotUser for helping with testing)
* Made status_delete return the deleted status (With "source" attribute)
* Added account_id parameter to notifications
* Added streaming_health
* Added support for local hashtag streams
* Made blurhash an optional dependency (Thanks limburgher)
* Fixed some things related to error handling (Thanks lefherz)
* Fixed various small documentation issues (Thanks lefherz)

------
* BREAKING BUT ONLY FOR YOUR DEPLOY, POTENTIALLY: http_ece and cryptography are now optional dependencies, if you need full webpush crypto support add the "webpush" feature to your Mastodon.py requirements or require one or both manually in your own setup.py.
* Fixed a bug in create_account (Thanks csmall for the report)
* Allowed and documented non-authenticated access to streaming API (Thanks webwurst)
* Fixed MastodonServerError not being exported (Thanks lefherz)
* Fixed various small documentation issues (Thanks julianaito)

------
* Fixed date parsing in hashtag dicts.

------
* Fixed search not working on Mastodon versions before 2.8.0. search now dynamically selects search_v1 or search_v2 and adjusts valid parameters depending on the detected Mastodon version.
* Added blurhash decoding.