collection view will now defer all normalization to the resolver
fix typo and remove commented out assertion
[BUGFIX beta] Fix evaluateUnboundHelper properties
Use Ember.Error consistently.
Merge pull request #3570 from rjackson/use_ember_error

Use Ember.Error consistently.
Merge pull request #3528 from boomsb/master

[BUGFIX beta] Fix evaluateUnboundHelper properties
Merge pull request #3534 from mikegrassotti/remove-premature-normalization

collection view will now defer all normalization to the resolver
[BUGFIX beta] Throw a sensible exception from SubArray.removeItem when not found.

- Throw a descriptive exception from SubArray.removeItem when there are
  no operations in the SubArray.
- Test that the correct exception is thrown from SubArray.removeItem.