Branch: https://github.com/components/ember/tree/rc1
Tag: https://github.com/components/ember/tree/1.0.0-rc.1
Fix in Ember-Data: https://github.com/components/ember-data/commit/c7edac3d013a2f064cf0666e0507f9b6d3b1cc92

Let me know if that's set up right. Could the Makefile be updated to just install ember? Feel free to rename the files if needed! Thanks!