[#2323] Fixed a typo causing /accounts/relationships to render default relationships. Improved the tests.

Closes: pleroma/pleroma#1643

Done via the following command:
git diff fcd5dd25 --stat --name-only | xargs sed -i '/Pleroma Authors/c# Copyright © 2017-2020 Pleroma Authors <https:\/\/pleroma.social\/>'

[#1335] Reorganized users.subscribers as UserRelationship. Added tests for UserRelationship-related functionality.

[#1335] Implemented notification mutes and reblog mutes as UserRelationships. User to UserRelationship relations and functions refactoring.

Introduced UserBlock.

This reverts merge request !1737

Hakaba Hitoyo authored Sep 26, 2019 and kaniini committed Sep 26, 2019

This reverts commit 3aef4bdf.

Done via the following command:
git diff 1e6c102b --stat --name-only | cat - | xargs sed -i 's/2017-2018 Pleroma Authors/2017-2019 Pleroma Authors/'

Mastodon API: Add a setting to hide follow/follower count from the user view (`hide_follows_count` and `hide_followers_count`)

Move test/web/mastodon_api/*_test.exs to test/web/mastodon_api/controllers and test/web/mastodon_api/views

followers/following is enabled

We are already doing that in AP representation, so I think we should do
it here as well for consistency.

Closes #1000

This is to provide a generic frontend settings storage mechanism for all kinds
of frontends.