Add artist profile images
Make tabs bar thinner
Add member management to artist form

another.js was separated into two classes: more.js for adding and
less.js for removing.
autocomplete.js: Prevent default only when suggestions are available
Only set up translations once
Move common methods for translatable names to their own module
Order albums by artist name and then by album name
Add MIT license
Use ActionController::Base.helpers instead of Sprockets::Rails::Helper
Update dependencies
Define translation names as not null
Fix song edit form
The new album form only creates one album and edition

Other editions can be added afterward.
Move editable locale field to tab title
Move translations flags to tab bar