ember.js and ember-addon.js are almost identical

[ryuran]

I think we can factorize these 2 files.

• https://github.com/peopledoc/eslint-config-peopledoc/blob/master/ember-addon.js
• https://github.com/peopledoc/eslint-config-peopledoc/blob/master/ember.js

[edouard-lopez]

Depending on @GreatWizard purpose with ember-addon.js, it might be worth to read Extending Configuration Files

[GreatWizard]

Defintively, I start a WIP PR. I'm gonna test it in some apps soonish