failing test showing incorrect URL is requested when a model contains multiple nested attributes of the same model type.
Merge pull request #22 from craigteegarden/incorrect-url-multiple-nested-models-same-type

failing test showing incorrect URL is requested when a model contains mu...
fix tests from #22 by extending DS.Store
Merge pull request #23 from Juvenal1228/issues/22/multiple-has-many

fix tests from #22 by extending DS.Store