May 1st has brought a fresh release of Aurelia and with it a change to the plugin API. The aurelia-breeze plugin is now compatible with this change.
Since this is a breaking change you'll need to jspm install aurelia-breeze to get the latest version. Make sure to run jspm clean to tidy up your config.js and jspm_packages folder.
Check out the Breeze Todos with Aurelia app here.