[BUGFIX beta] Does not disregard currentWhen when given explicitly.
FIxes #4688
Update to Ember.View's attributeBindings Documentation

You can map one property on to another within the `attributeBindings` array, but this wasn't represented in the documentation. I talked about this with @rwjblue in #emberjs yesterday, and he recommended I update the docs. :smile:
Merge pull request #4716 from mtthgn/patch-1

Update to Ember.View's attributeBindings Documentation
Merge pull request #4700 from hyderali/fix-resource-currentwhen

[BUGFIX beta] Does not disregard currentWhen when given explicitly.