Cleans nested fields and fixes missing errors on selector in forms
Merge branch 'master' of github and finishes to translate and unify locales

Conflicts:
	config/locales/arb/action.yml
	config/locales/arb/models.yml
	config/locales/eng/models.yml
	config/locales/fra/models.yml
	config/locales/jpn/action.yml
	config/locales/jpn/models.yml
	config/locales/spa/action.yml
	config/locales/spa/models.yml