Fix #364. nonembedded belongsTo does not have container
Merge pull request #366 from ckung/master

Fix nonembedded belongsTo does not have container.
FixtureAdapter.createRecord - handle the case when the `rootKey` property is set
Use shortcut for ember get
Allow HEAD (undefined response body) on RESTAdapter
Merge pull request #372 from ahacking/rest_adapter_head_response

Support HEAD response (undefined response body) on RESTAdapter
Relationships should not return promises when using the store
Model.fetchAll returns existing promise if there is one outstanding.

Fixes issue #386
Merge pull request #387 from jnovatnack/reuse-fetch-all-promise

Model.fetchAll returns existing promise if there is one outstanding.
Allow properties to passed to store createRecord
Fix belongs_to dirty change to use correct key
Container fixes for record loading and materialization
Replace deprecated Ember.Deferred with Ember.RSVP.defer

`Ember.Deferred` has been deprecated as of Ember 1.7.0-beta.3 (emberjs/ember.js#5215).
=BG= parameters for Model#load

It is not immediately obvious what the parameters for `Model#load` should be - the default assumption would be `Model#load(<object>)`, but it is actually `Model#load(<id>, <object>)`. Make this explicit in the readme.
Restoring IE8 support
Merge pull request #402 from Emerson/master

Restoring IE8 support
Merge pull request #399 from bguiz/patch-1

parameters for Model#load
Merge pull request #398 from praxxis/master

Replace deprecated Ember.Deferred with Ember.RSVP.defer
Merge pull request #393 from ahacking/fix_belongs_to_dirty_key

Fix belongs_to dirty change to use correct key
Merge pull request #392 from ahacking/store_create_record_with_props

Allow properties to be passed to store createRecord