Added note about empty ids in async relationships issue
added failing test
updated test
made the test pass
use indexOf polyfill
Fix ajaxSuccess docblock return value
Extract function to proxy `PromiseManyArray`'s method to `content`
`PromiseManyArray` proxies `Ember.Evented` methods to its `content`
Expand the package configuration filename glob declaration in `Brocfile.js` into the affected filenames, as the `broccoli-string-replace` plugin doesn't support globbing

This enables the package version to be properly injected.
Remove attr() data dependency

- attr() no longer depends on data
- model.setupData() calls notifyPropertyChange() for provided properties only
fix error propogating up through RSVP handler in tests
Add fetch method to the store
Use store to call the find method
Add tests for store#fetch
Remove console.log
Add more info about the store.fetch method
Improve store.filter() docs
Merge pull request #2483 from wecc/improve-store-filter-docs

Improve store.filter() docs
Add test for repeated failed model saves state
Allow async belongsTo to return null