Consider refactoring the attrs hash for 1.0

[igorT]

Serializers are currently customized using the attrs hash
For example: http://emberjs.com/api/data/classes/DS.RESTSerializer.html#property_attr
However the attrs hash grew out organically and applies to both relationships and attributes. The attrs name can be confusing, should we change it to options or smth?

[bmac]

Is this the attrs hash on the serializer?

[igorT]

Yes, it's weird its called attrs yet works for both attributes and relationships