function shortModelName(model) {
  let name = modelName(model);
  // jj-abrams-resolver adds `app@model:`
  return name.replace(/<[^>]+@model:/g, '<');
}
Takes an Ember Data model and strips out the extra noise from the name.

@method shortModelName
@param  {DS.Model} model
@return {String}       The concise model name.