* When we isolated the variable form path to within its component for isolation reasons, we lost the model-level checks for related entites at type-time
* Be a little more functionally pure
* Use Ember.set to appease mirage
* Warning on attempt to leave
* Lintfix
* Only router.off once
* Dont warn on transition when only updating queryparams
* Remove double-push and queryparam-only issues, thanks @lgfa29
* Acceptance tests
* Changelog
