emberjs/ember.js — pull request #9658 by rwjblue (2014-11-20 22:54:33+00:00)
Title: Enable Handlebars compat mode when HTMLBars is enabled.

This is stage one in being fully backwards compat with the Ember.Handelbars API's.

Over the next few PR's I will remove all but the bare minimum required instances of the ember-htmlbars feature flag.