emberjs/ember.js — pull request #2225 by rlivsey (2013-03-06 16:35:45+00:00)
Title: Allow specifying controller properties & bindings in {{control}} helper

Proof of concept fix for #1914

Prefixes properties with 'controller' to disambiguate from other properties which will be passed to the view:

{{control datePicker controllerDateBinding="currentDate"}}