Bump version to 2.9.1 (#11143)

CHANGELOG.md

@@ -3,6 +3,31 @@ Changelog
 
 All notable changes to this project will be documented in this file.
 
+## [2.9.1] - 2019-06-22
+### Added
+
+- Add moderation API ([Gargron](https://github.com/tootsuite/mastodon/pull/9387))
+- Add audio uploads ([Gargron](https://github.com/tootsuite/mastodon/pull/11123), [Gargron](https://github.com/tootsuite/mastodon/pull/11141))
+
+### Changed
+
+- Change domain blocks to automatically support subdomains ([Gargron](https://github.com/tootsuite/mastodon/pull/11138))
+- Change Nanobox configuration to bring it up to date ([danhunsaker](https://github.com/tootsuite/mastodon/pull/11083))
+
+### Removed
+
+- Remove expensive counters from federation page in admin UI ([Gargron](https://github.com/tootsuite/mastodon/pull/11139))
+
+### Fixed
+
+- Fix converted media being saved with original extension and mime type ([Gargron](https://github.com/tootsuite/mastodon/pull/11130))
+- Fix layout of identity proofs settings ([acid-chicken](https://github.com/tootsuite/mastodon/pull/11126))
+- Fix active scope only returning suspended users ([ThibG](https://github.com/tootsuite/mastodon/pull/11111))
+- Fix sanitizer making block level elements unreadable ([Gargron](https://github.com/tootsuite/mastodon/pull/10836))
+- Fix label for site theme not being translated in admin UI ([palindromordnilap](https://github.com/tootsuite/mastodon/pull/11121))
+- Fix statuses not being filtered irreversibly in web UI under some circumstances ([ThibG](https://github.com/tootsuite/mastodon/pull/11113))
+- Fix scrolling behaviour in compose form ([ThibG](https://github.com/tootsuite/mastodon/pull/11093))
+
 ## [2.9.0] - 2019-06-13
 ### Added