* Change references to tootsuite/mastodon to mastodon/mastodon
* Remove obsolete test fixture
* Replace occurrences of tootsuite/mastodon with mastodon/mastodon in CHANGELOG
And a few other places
* Update annotate to version 2.7.3
* Update aws-sdk-s3 to version 1.9.2
* Update browser to version 2.5.3
* Update capistrano to version 3.10.2
* Update domain_name to version 0.5.20180417
* Update http to version 3.2.0
* Update lograge to version 0.10.0
* Update oj to version 3.5.1
* Update parallel_tests to version 2.21.3
* Update puma to version 3.11.4
* Update rubocop to version 0.55.0
* Update scss_lint to version 0.57.0
* Update simplecov to version 0.16.1
* Update tty-command to version 0.8.0
* Update tty-prompt to version 0.16.0
* Update pkg-config to version 1.3.0
* Update fog-local to version 0.5.0
* Update fog-openstack to version 0.1.25
* Update devise-two-factor to version 3.0.3
* bundle update
* Update better_errors to version 2.4.0
* Update binding_of_caller to version 0.7.3
* Update bootsnap to version 1.1.5
* Update browser to version 2.5.2
* Update capistrano to version 3.10.0
* Update capistrano-bundler to version 1.3.0
* Update capistrano-rbenv to version 2.1.2
* Update capybara to version 2.15.4
* Update cld3 to version 3.2.1
* Update fabrication to version 2.18.0
* Update fog-openstack to version 0.1.22
* Update kaminari to version 1.1.1
* Update lograge to version 0.7.1
* Update nokogiri to version 1.8.1
* Update oj to version 3.3.9
* Update ox to version 2.8.1
* Update parallel_tests to version 2.17.0
* Update pkg-config to version 1.2.8
* Update rspec-rails to version 3.7.1
* Update rubocop to version 0.51.0
* Update scss_lint to version 0.55.0
* Update sidekiq to version 5.0.5
* Update sidekiq-scheduler to version 2.1.10
* Update tzinfo-data to version 1.2017.3
* Update webpacker to version 3.0.2
* bundle update
Deployment with Capistrano was failing due to a mismatch between the loaded
version of Capistrano and the one specified in the deployment
configuration. Bumping the version in config/deploy.rb fixes this issue.