Match error response expected by ember-data.js
Merge pull request #166 from HeroicEric/scaffold_generator_error_response

Match error response expected by ember-data.js
New path for Rails serializers

With this change Rails serializers are going to be placed under
`config/serializers` along side with Ember ones.

Fixes #162

@bcardarella + @twokul
Merge pull request #168 from dockyard/alex-active-model-serializers

New path for Rails serializers
Update to Ember Data 1.0.0-beta.6.

This resolves an issue with the new resolver dasherizing names which
caused the _ams adapter to not be found due to the resolver dasherizing
the looked-up names.
Merge pull request #169 from rjackson/update-ember-data

Update to Ember Data 1.0.0-beta.6.