Serialize belongsTo where id===null as null
Merge pull request #2287 from emberjs/nullSerialize

Serialize belongsTo where id===null as null
Improve comments for the inverseFor method
Added implicit relationships

We now correctly remove a record from a manyArray when it is deleted
even if the record does not have a belongsTo relationship to the manyArray
Merge pull request #2274 from emberjs/removeFromManyArrays

Added implicit relationships
[DOC fix] Remove misleading {inverse: null}
Merge pull request #2295 from sly7-7/patch-1

[DOC fix] Remove misleading {inverse: null}
Added a reload to the ManyArray

It works both with links and with URLs
Add a test for reload on sync hasMany relationships
Add a test for calling reload directly on the promiseProxy
HasMany relationships now reload correctly
Merge pull request #2297 from emberjs/reloadHasManyAttempt2

Reload hasMany relationships
Makes it possible to custom define inverses on only one side

This also adds a cache to inverseFor
Do not reuse argument values when calculating inverses
Refactor inverseFor cache
Merge pull request #2293 from eniolopes/improve-inverse-for

Adds caching to inverseFor and implements look for inverses on the other side
Fix typo (was silent in simple case)
Unwrap promises when setting a belongsTo