Upgrade Sentry gem
sentry-raven is at 1.1.0, which is one major and one minor release ahead of us. We should upgrade it.
Changelog: https://github.com/getsentry/raven-ruby/blob/master/changelog.md
cc: @rspeicher
Do not update/delete: Banner broadcast message test data
Do not update/delete: Notification broadcast message test data
sentry-raven is at 1.1.0, which is one major and one minor release ahead of us. We should upgrade it.
Changelog: https://github.com/getsentry/raven-ruby/blob/master/changelog.md
cc: @rspeicher