emberjs/data — pull request #1249 by jagthedrummer (2013-09-08 21:27:39+00:00)
Title: Add info on sending underscored JSON for create/update operations

In 0.13 the REST Adapter would send underscored JSON for create/update
requests. Beginning in Beta 1 the REST Adapter sends camelized JSON.

This PR updates TRANSISTION.md to show how to get back to underscores.