emberjs/ember.js — pull request #2709 by machty (2013-05-21 20:59:41+00:00)
Title: Treat {{#each}} as {{#each this}}

Now the following is supported:

{{#each}}Hello, {{name}}{{/each}}

This should alleviate the silliness that all of the following are
(often) the same:

{{#each this}}...{{/each}}
{{#each controller}}...{{/each}}
{{#each content}}...{{/each}}