emberjs/ember.js — pull request #2573 by blindsamson (2013-04-26 23:01:35+00:00)
Title: Allow less writing for setProperties with the same value

This change allows you to set multiple properties with the same value.

Old way:
`object.setProperties({'prop1': false, 'prop2': false});`

New way:
`object.setProperties(['prop1', 'prop2'], false);`