Add modelTypeFromRoot hook to RESTSerializer for extracting the modelType from the JSON payload key
Fixed typo in doc comments: @property instead of @param
Merge pull request #1236 from davidsevcik/master

Fixed typo in doc comments: @property instead of @param
Fix invalid inline docs
Don't use likely-to-be-used IDs in fixtures

Fixes #1237
Add assertions that array fetches return arrays

Fixes #820
Merge pull request #1233 from bradleypriest/modelFromRoot

Add modelTypeFromRoot hook
Remove outdated documentation about filters and materialization

Since all records are immediately materialized now anyway, creating a filter should no longer change that aspect of performance.
Add documentation for using underscored API endpoings and underscored root objects in JSON responses.

Starting in Beta 1 the RESTAdapter tries to send API requests to '/blog-posts' instead of '/blog_posts' as it had done previously.  It also expects the root object of a JSON response to be camelized instead of underscored.  This PR add info to the TRANSITION document about how to go back to the previous functionality.
Add pushPayload(store, payload)
Make sure pushed data has an ID
Merge pull request #1241 from jagthedrummer/jeremy/api-endpoint-transition

Add info for using underscored API endpoints and JSON root objects
Update some language about underscored keys
Merge pull request #1239 from nragaz/patch-4

Remove outdated documentation about filters and materialization
Fix the build
JSONSerializer recognises keyForAttribute/keyForBelongsTo if defined
Add info about getting underscored root object in create/update requests.

In 0.13 the REST Adapter would send underscored versions of multi word
model names as the root element.  Beginning in Beta 1 the REST Adapter
sends camelized root object.

This PR add info to TRANSITION.md about how to get back to underscored root objects.
Add test for custom typeFromRoot
change modelTypeFromRoot to typeFromRoot to match pathFromType.
Rename adapterForType - adapterFor to match serializerFor