Do not call adapter.deleteRecord for a record that is already saved and deleted.
Remove DS.AttributeChange.
Fix rollback on invalid record after set
Add an example of sending cookie information in the header and updated confusing reopen example.
Fix error assertion's message

This fixes the error message to reflect the changes described in [Defining Relationships in Models](https://github.com/emberjs/data/blob/master/TRANSITION.md#defining-relationships-in-models).
add semicolons to example code
Merge pull request #1841 from mikepmunroe/fix-up-inflector-docs

add semicolons to example code
change 'the the' to 'the'
Merge pull request #1843 from mikepmunroe/fix-store-documentation

change 'the the' to 'the'
change its to it's and remove 'do' that is not needed
Merge pull request #1844 from mikepmunroe/fix-fixture-documentation

change its to it's and remove 'do' that is not needed
Fix incorrect documentation for isError.

If the server returns a validation error, then isError is not set to true.
Refactor Ember initializer to use DS._setupContainer

The container setup used by Ember-Data has been coupled to the Ember.js
application initialization code. This splits the container setup into a
separate set of files, allowing container setup to be used in testing
environments that have not booted an application. Testing environments
should use the new `DS._setupContainer` API:

    var container = new Ember.Container();
    DS._setupContainer(container);
    var store = container.lookup('store:main');

`DS._setupContainer` will configure the container for ember-data proper
and for the activemode-adapter package.

This API uses an _ as a warning to consumers: It may change.
Merge pull request #1859 from mixonic/initializers

Move initializers into packages
Drop spurious var set statements
Bring back deprecated initializers

Libraries such as ic-ajax are dependent on the old initializers in
ember-data (such as "store"). This brings them back temporarially, but
they will eventually be removed and are non-functional.
Fix warnings generated by yuidoc
Merge pull request #1868 from bmac/fix-yuidoc-warnings

Fix warnings generated by yuidoc
Update error messages from push and update

Error messages now include model type for ease of debugging
Extend from Controller for ApplicationController.