emberjs/data — pull request #1250 by jagthedrummer (2013-09-08 22:17:56+00:00)
Title: Add info about getting underscored root object in create/update requests

In 0.13 the REST Adapter would send underscored versions of multi word
model names as the root element. Beginning in Beta 1 the REST Adapter
sends camelized root object.

This PR add info to TRANSITION.md about how to get back to underscored root objects.