Fix #340

* Use Contact User as Relay, Report, Subscribe.

* Use Account.representative to fetch contact user.

* Use find_local.

* No reason to use Account.representative in subscribe_service.

* Don't required representative!

* Fallback is included in Account.representative method.

Fix #4419

Fix #9697

* Allow to show a specific status in the admin interface

* Let the front-end know the current account is a moderator

* Add admin links to status and account menus

If the current logged-in user is an admin, add quick links to the admin
interface in account and toot dropdown menu. Suggestion by @ashkitten

* Use @statuses.first instead of @statuses[0]

Regression from #9700

Bumps [rubocop](https://github.com/rubocop-hq/rubocop) from 0.61.1 to 0.62.0.
- [Release notes](https://github.com/rubocop-hq/rubocop/releases)
- [Changelog](https://github.com/rubocop-hq/rubocop/blob/master/CHANGELOG.md)
- [Commits](https://github.com/rubocop-hq/rubocop/compare/v0.61.1...v0.62.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [parallel_tests](https://github.com/grosser/parallel_tests) from 2.27.0 to 2.27.1.
- [Release notes](https://github.com/grosser/parallel_tests/releases)
- [Commits](https://github.com/grosser/parallel_tests/compare/v2.27.0...v2.27.1)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [webpush](https://github.com/zaru/webpush) from 0.3.4 to 0.3.5.
- [Release notes](https://github.com/zaru/webpush/releases)
- [Changelog](https://github.com/zaru/webpush/blob/master/CHANGELOG.md)
- [Commits](https://github.com/zaru/webpush/compare/v0.3.4...v0.3.5)

Signed-off-by: dependabot[bot] <support@dependabot.com>

* Add specs for UnreservedUsernameValidator

* Use instance variable

Bumps [tty-prompt](https://github.com/piotrmurach/tty-prompt) from 0.18.0 to 0.18.1.
- [Release notes](https://github.com/piotrmurach/tty-prompt/releases)
- [Changelog](https://github.com/piotrmurach/tty-prompt/blob/master/CHANGELOG.md)
- [Commits](https://github.com/piotrmurach/tty-prompt/compare/v0.18.0...v0.18.1)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [pry-rails](https://github.com/rweng/pry-rails) from 0.3.8 to 0.3.9.
- [Release notes](https://github.com/rweng/pry-rails/releases)
- [Commits](https://github.com/rweng/pry-rails/compare/v0.3.8...v0.3.9)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [httplog](https://github.com/trusche/httplog) from 1.1.1 to 1.2.0.
- [Release notes](https://github.com/trusche/httplog/releases)
- [Changelog](https://github.com/trusche/httplog/blob/master/CHANGELOG.md)
- [Commits](https://github.com/trusche/httplog/compare/v1.1.1...v1.2.0)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [tzinfo-data](https://github.com/tzinfo/tzinfo-data) from 1.2018.7 to 1.2018.9.
- [Release notes](https://github.com/tzinfo/tzinfo-data/releases)
- [Commits](https://github.com/tzinfo/tzinfo-data/compare/v1.2018.7...v1.2018.9)

Signed-off-by: dependabot[bot] <support@dependabot.com>

Bumps [oj](https://github.com/ohler55/oj) from 3.7.4 to 3.7.6.
- [Release notes](https://github.com/ohler55/oj/releases)
- [Changelog](https://github.com/ohler55/oj/blob/master/CHANGELOG.md)
- [Commits](https://github.com/ohler55/oj/compare/v3.7.4...v3.7.6)

Signed-off-by: dependabot[bot] <support@dependabot.com>

- Reduce time-to-digest from 20 to 7 days
- Fetch mentions starting from +1 day since last login
- Fix case when last login is more recent than last e-mail
- Do not render all mentions, only 40, but show number in subject
- Do not send digest to moved accounts
- Do send digest to silenced accounts

* Ensure blocked user unfollows blocker if Block/Undo Block are processed out of order

* Add specs for Block causing unfollow and for out-of-order Block + Undo

Fix #9369

Fix #6893
Fix #9268

Revert #9423. Issues with line breaks / clutter.

* Update react-* to v16.7.0

* Upgrade react-hotkeys to v1.1.4

* Update react-intl to v2.7.2

* Update react-select to v2.2.0

* Update react-swipeable-views to v0.13.0

* Upgrade react-textarea-autosize to v7.1.0

* Upgrade redux to v4.0.1

* Upgrade reselect to v4.0.0

* Update raf to v3.4.1

* Update enzyme to v3.8.0

* Update rails-ujs to v5.2.2

* Update axios to v0.18.0

* Update http-link-header to v1.0.2

* Update rellax to v1.7.1

* Update intersection-observer to v0.5.1

* Update stringz to v1.0.0

* Upgrade babel-eslint to v10.0.1

* Update @babel/* to v7.2.x

* Update babel-plugin-react-intl to v3.0.1

* Update babel-plugin-transform-react-remove-prop-types to v0.4.21

* Upgrade dotenv to v6.2.0

* Update express to v4.16.4

* Update webpack to v4.28.3

* Upgrade autoprefixer to v9.4.3

* Update babel-loader to v8.0.4

* Upgrade css-loader to v2.1.0

* Upgrade file-loader to v3.0.1

* Update marky to v1.2.1

* Update mini-css-extract-plugin to v0.5.0

* Update offline-plugin to v5.0.6

* Update style-loader to v0.23.1

* Update eslint-plugin-jsx-a11y to v6.1.2

* yarn upgrade

* fix

* Replace webpack-manifest-plugin to webpack-assets-manifest

* Replace node-zopfli to @gfz/zopfli

* Remove monkey-patch for http-link-header

Fix #9365

* Skip full text search if failed

* Move rescue block to "perform_statuses_search!"

Avoids possible misleading delay before redirection during which the
composer would be cleared and redrawn.

* Do not LDS-sign Follow, Accept, Reject, Undo, Block

* Do not use LDS for Create activities of private toots

* Minor cleanup

* Ignore unsigned activities instead of misattributing them

* Use status.distributable? instead of querying visibility directly

* Add specs for BlackListedEmailValidator

* Use instance variable

* Update config.yml

* Update Gemfile

* dropping ruby 2.3

2.3 EOL date: scheduled for 2019-03-31

* Updating docker containers

* Update Gemfile

In order to implement tests easier, `#select_tags` created.

This will allow Docker to be automatically check the health of services.

Docker won't do anything other than showing the state in the output of
"docker-compose ps" by default, but some management tools may watch for
container health events.

Here's what my local instance looks like right now:

          Name                        Command                  State                     Ports
-------------------------------------------------------------------------------------------------------------
mastodon_db_1              docker-entrypoint.sh postgres    Up (healthy)
mastodon_es_1              /usr/local/bin/docker-entr ...   Up (healthy)
mastodon_redis_1           docker-entrypoint.sh redis ...   Up (healthy)
mastodon_redis_cache_1     docker-entrypoint.sh redis ...   Up (healthy)
mastodon_sidekiq_1         /sbin/tini -- bundle exec  ...   Up             3000/tcp, 4000/tcp
mastodon_streaming_1       /sbin/tini -- yarn start         Up (healthy)   3000/tcp, 127.0.0.1:4000->4000/tcp
mastodon_web_1             /sbin/tini -- bash -c rm - ...   Up (healthy)   127.0.0.1:3000->3000/tcp, 4000/tcp