Fix #364. ensure a record is always passed to getType()
Fix record create/save on FixtureAdapter so revert works
Add attribute level save/update control
Correctly set isDirty in embedded objects after saving new record
Allow properties to passed to store createRecord
In some cases an Ember.Object is sent as a reference and must be set using Em.set()
Fix belongs_to dirty change to use correct key
Container fixes for record loading and materialization