Add support for empty to-one relationship according to JSON API v1.0#33

Merged

joshdholtz merged 3 commits intojoshdholtz:masterfrom

ViralFoundry:master

Jan 12, 2016

Commits on Jan 3, 2016

Add test for empty relationship
RafaelKayumov
committed
Add support for empty to-one relationship according to JSON API v1.0 specification
RafaelKayumov
committed

Commits on Jan 4, 2016

Fix assertion description
RafaelKayumov
committed