[BUGFIX beta] Make Component.sendAction behave the same as {{action}} helper.
Merge pull request #3557 from teddyzeenny/refactored-test-promises-new

Refactor ember-testing and unchain async helpers
Merge pull request #3558 from rjackson/make_send_action_support_multiple_params

[BUGFIX beta] Make Component.sendAction behave the same as {{action}} helper.
Use Ember.Error consistently.
[BUGFIX beta] Give precedence to routes with more static segments. Fixes #3573
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.
Add tests for Application#injectTestHelpers.

Adds tests to ensure that the `onInjectHelpers` callbacks are ran, and
ensures that the tests are run in a consistent state (prior to the
`cleanup` changes here we would leak `ajaxStart` and `ajaxStop` event
handlers).
Merge pull request #3576 from rjackson/add_tests_for_on_inject_helpers

Add tests for Application#injectTestHelpers.
fix invalid decumentation for using Ember.compute.empty with arrays
Merge pull request #3579 from stefanpenner/fix-empty-cp-docs

fix invalid decumentation for using Ember.compute.empty with arrays
[fixes #3072] Ember.run.later now behaves closer to setTimeout +
Ember.run
Ensure Ember.run.laters executeAt date is correclty coerced.
Added a test for test helper 'wait' to check for pending timers

Signed-off-by: hajee <hajee@moretIA.com>
Merge pull request #3582 from hajee/master

Added a test for test helper 'wait' to check for pending timers
Improve error message when action bubbles
Document available features.

Add `FEATURES.md` as a place for contributors to indicate what each
feature flag does and where we can find out more information about it.
Merge pull request #3583 from alexspeller/improve-action-error-message

Improve error message when action bubbles