Add tests for calling jQuery.ajax from DS.RESTAdapter
Fix: unload record with relationships

- calling `clearRelationships` before changing record state,
  otherwise it fails, because properties try to update removed
  relationships

- Transaction commit failed when an unloaded record was in the
  `transaction.bucketForType.updated` array. Using recordIsMoving fixed
  this issue
Only setting content-type to JSON if there actually is content.
Merge branch 'master' of github.com:enyo/data
Added a test for the content-type.
fix test description
Prevent duplicate handling of sideloaded values when there are complex relationships
Merge pull request #669 from raycohen/dedup-sideloading

Prevent duplicate handling of sideloaded values
Warn if an application lacks a Store property

Attempts to use model class related methods that alias
to the store currently throw
`TypeError: Cannot read property 'find' of undefined`

This commit improves the message and offers a suggested
solution.
Fixed trailing commas which breaks IE7.
Support use without prototype extensions
Fixed tests for Ember master
Switch to ember-dev for tooling
Update ember-dev to fix tests
Merge pull request #702 from CrowdStrike/tooling

Switch to ember-dev for tooling
fixed issue #582
added adapter integration test for dirtyRecordsForAttributeChange
Update Readme unit test section
Wrap a run loop around simulated remote calls
add fixture serializer