Ghost/ghost/admin/config/deprecation-workflow.js

window.deprecationWorkflow = window.deprecationWorkflow || {};
window.deprecationWorkflow.config = {
    workflow: [
        {handler: 'silence', matchMessage: 'Usage of `Ember.merge` is deprecated, use `Ember.assign` instead.'},
        {handler: 'silence', matchMessage: 'Using the injected `container` is deprecated. Please use the `getOwner` helper instead to access the owner of this object.'},
        {handler: 'silence', matchMessage: 'You modified (-join-classes "ember-view" "form-group" (-normalize-class "errorClass" errorClass activeClass=undefined inactiveClass=undefined)) twice in a single render. This was unreliable in Ember 1.x and will be removed in Ember 3.0'}
    ]
};