Add ‘success’ flash type.
Implement feedback page for articles.
Implement general (technical) feedback page.
Implement the money advice page.
Add links to give feedback to the article show page.
Put the feedback panel on articles behind a feature toggle.
Remove the ActionMailer mailer.
Add mail gem to Gemfile.
Setup mail gem defaults.
Move Core::ConnectionFactory to Core::ConnectionFactory::Http.
Move Core::Connection to Core::Connection::Http.
Introduce mailer as a connection type in the registry.
WIP - basic integration of the smtp connection with a repository.