add DS.Errors object
Add API missing api docs for normalizeHash and keyForAttribute
Document the VERSION property
Merge pull request #1627 from bmac/doc-core

Document the VERSION property
Merge pull request #1626 from bmac/missing-serializer-docs

Add API missing api docs for normalizeHash and keyForAttribute
Merge pull request #1546 from tchak/ember-data-reboot-validation-errors

add DS.Errors object
Clean up the docs for DS.RESTAdapter
handle case of single object pushPayload
Merge pull request #1624 from bmac/rest-adapter-docs

Clean up the docs for DS.RESTAdapter
Merge pull request #1629 from tpitale/single-push-payload

Handle case of single object pushPayload