* DEV: Fix the function prototype observers deprecation
DEPRECATION: Function prototype extensions have been deprecated, please migrate from function(){}.observes('foo') to observer('foo', function() {}). [deprecation id: function-prototype-extensions.observes] See https://deprecations.emberjs.com/v3.x/#toc_function-prototype-extensions-observes for more details.
* DEV: Fix the function prototype event listeners deprecation
DEPRECATION: Function prototype extensions have been deprecated, please migrate from function(){}.on('foo') to on('foo', function() {}). [deprecation id: function-prototype-extensions.on] See https://deprecations.emberjs.com/v3.x/#toc_function-prototype-extensions-on for more details.
* DEV: Simplify `default as` imports
Co-authored-by: Joffrey JAFFEUX <j.jaffeux@gmail.com>
Migrates email user options to a new data structure, where `email_always`, `email_direct` and `email_private_messages` are replace by
* `email_messages_level`, with options: `always`, `only_when_away` and `never` (defaults to `always`)
* `email_level`, with options: `always`, `only_when_away` and `never` (defaults to `only_when_away`)
