Merge branch 'all-ci-offline-migrations' into 'master'

app/controllers/concerns/service_params.rb

app/mailers/emails/builds.rb

app/mailers/notify.rb

app/models/ci/build.rb

app/models/ci/pipeline.rb

app/models/ci/runner.rb

app/models/ci/runner_project.rb

app/models/ci/trigger.rb

app/models/ci/variable.rb

app/models/commit_status.rb

app/models/project.rb

app/models/project_services/builds_email_service.rb

app/models/project_services/chat_message/build_message.rb

app/models/project_services/chat_notification_service.rb

app/models/project_services/hipchat_service.rb

app/models/project_services/mattermost_service.rb

app/models/project_services/slack_service.rb

app/models/service.rb

app/models/user.rb

app/services/ci/register_job_service.rb