Slim's output is set as pretty format
Available for settings
add require_login and test
Fix text
add require_login on before_action
disable route edit and update
fix to check label
prepare instance variable if update failed
fix id name
add spec
swap label order
add settings button
modify text [ci skip]
Merge pull request #118 from iiirc/#23-settings-for-an-email

[wip] - #23 settings for an email