Fix addon to work with ember 2.10.0 and above

[ajile]

I've ran into the problem of using ember-dialog with [email protected]. Seems the Ember Component does not have template property anymore, and the dialogs show up without body. While with the previous version of [email protected] it works fine.

You may reproduce the problem so:

app/components/foo-bar.js

import Ember from "ember";
import hbs from 'htmlbars-inline-precompile';

Ember.Component.extend({
  template: hbs`A TEMPLATE`
})

app/components/foo-bar.hbs

BEGIN {{yield}} END

Ember v2.9.1 will output: BEGIN A TEMPLATE END, but Ember v2.10.10 will output: BEGIN END

[waleedq]

I've created a new issue regarding the template property in ember.js here is a link for that emberjs/ember.js#14713, let's see what API changes that caused this issue.