Page 70: Can use new {{else if}} syntax as of Ember 1.10

[jbinto]

The article-row.hbs code fragment at the top of Page 70 can be rewritten using the new {{else if}} chained helper, as per http://emberjs.com/blog/2015/02/07/ember-1-10-0-released.html#toc_chained-else-blocks

[abuiles]

Thanks! It'll be available in today's release :)