boolean is a possibility: (see link to source)

https://github.com/emberjs/data/blob/v1.0.0-beta.12/packages/ember-data/lib/system/model/attributes.js#L239
Merge pull request #22 from devinrhode2/patch-1

boolean is a possibility in ember-data.
Disable Grunt hook for sails per default
Starting to switch away from esnext to traceur.
Adding missing files.
Switched to tracuer so broccoli is not needed anymore.
Working on improved db setup for local.
Added new files.