* Add ActivityPub inbox

* Handle ActivityPub deletes

* Handle ActivityPub creates

* Handle ActivityPub announces

* Stubs for handling all activities that need to be handled

* Add ActivityPub actor resolving

* Handle conversation URI passing in ActivityPub

* Handle content language in ActivityPub

* Send accept header when fetching actor, handle JSON parse errors

* Test for ActivityPub::FetchRemoteAccountService

* Handle public key and icon/image when embedded/as array/as resolvable URI

* Implement ActivityPub::FetchRemoteStatusService

* Add stubs for more interactions

* Undo activities implemented

* Handle out of order activities

* Hook up ActivityPub to ResolveRemoteAccountService, handle
Update Account activities

* Add fragment IDs to all transient activity serializers

* Add tests and fixes

* Add stubs for missing tests

* Add more tests

* Add more tests

Resolve #3199

application/json only allows Unicode, so this prevents from wrong charset detection.

apply same style class to the About description on both the landing page
and the about/more page

* Revert "Adjust tags and accounts page (#4534)"

This reverts commit a3e53bd4.

* Revert "feat: Cache status height to avoid expensive renders (#4439)"

This reverts commit 8eb6d171.

* Revert "Refactor Avatar and AvatarOverlay to have 'account' as prop instead of src and staticSrc (#4526)"

This reverts commit 59423474.

* Revert "Update dependencies for Ruby (#4543)"

This reverts commit 22db9472.

* Revert "[Docker] Add multicore support to "make" and "bundler" (#4544)"

This reverts commit 5d408fd9.

* Revert "It makes no sense to try using invalid or expired link again (#4521)"

This reverts commit 47579ec5.

* Revert "i18n: Update Polish translation (#4545)"

This reverts commit 3363a055.

* Revert "Set false to animated options for thumbnail processor (#4547)"

This reverts commit 87f10d47.

* Adjust tag and accounts page

* Remove units from 0px paddings

* feat: Cache status height to avoid expensive renders

* feat: Escape content and emojify in reducers

* fix(css): Remove backface-visibility: hidden from .scrollable

* fix(statuses): Avoid creating DOMParses inside a loop

* Refactored Avatar and AvatarOverlay (DRY) to have 'account' as prop.
Also removed animate attribute from compose navigation bar, which should
have never been there. Added test for avatar overlay.

* fix broken tests

* god dammit another bug in tests! travis please let this pass

* formatting in avatar overlay

* Update twitter-text to version 1.14.7

* Update tilt to version 2.0.8

* Update statsd-instrument to version 2.1.4

* Update sidekiq to version 5.0.4

* Update sidekiq-scheduler to version 2.1.8

* Update sidekiq-unique-jobs to version 5.0.9

* Update redis-activesupport to version 5.0.3

* Update rails-settings-cached to version v0.6.6

* Update pkg-config to version 1.2.4

* Update parallel_tests to version 2.14.2

* Update jsonapi-renderer to version 0.1.3

* Update i18n-tasks to version 0.9.16

* Update httplog to version 0.99.7

* Update fabrication to version 2.16.2

* Update bootsnap to version 1.1.2

* Update aws-sigv4 to version 1.0.1

* Update aws-sdk-core to version 2.10.21

* Update hashdiff to version 0.3.5

* Update rails to version 5.1.3

* Let make and bundler use multiple cores

* Adds -j option to bundle install instead of bundle config

Signed-off-by: Marcin Mikołajczak <me@m4sk.in>

Resolve #3199

Fix the aspect ratio of animated GIF whose background is transparent.

wrong character, sorry about that~

Translation for https://github.com/tootsuite/mastodon/pull/4523

Neutral form used.

Salutation mailer + invalid reset link.

The feature to pin column could hide the rightmost column, which is
specified with children property of ColumnsArea.

The user is likely to see the column when the property changed, so scroll
the area in such cases.

System default libiconv of Alpine Linux only supports some charset (e.g. UTF-8).
Therefore, the preview card of the page which is not UTF-8 will be broken in the Docker environment.

Using GNU libiconv!

* i18n: Update Polish translation

* Update Polish translation

fix style

"©"削除処理をemojione_lightに移動

Fixes #4496

Use `text-align: unset` instead of `text-align: start` which Edge doesn't support for now.

Also remove default margin on Safari.

* Update Japanese Translation

* preserve "Unfortunately"("残念ながら")

preserve "Unfortunately"("残念ながら")

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