[DOC] Correction for `ActionHandler` implementing classes
[FEATURE ember-metal-computed-empty-array] Enable by default.
[FEATURE ember-runtime-test-friendly-promises] Enable by default.
[BUGFIX] Add `which` attribute to event triggered by test helper
[BUGFIX beta] Throw error on `Maximum call stack size exceeded`
[BUGFIX] inspect missing from QUnitAdapter scope
[BUGFIX beta] sync router.js: fix parent-child route invalidation bug

Closes #4405
Merge pull request #4558 from machty/router-parent-child-fix

[BUGFIX beta] sync router.js: fix parent-child route invalidation bug
expose asObject to precompile function

expose the pre-existing functionality to precompile as an object/string
Merge pull request #4097 from kingpin2k/exposeAsObject

expose asObject to precompile function
Merge pull request #4557 from mixonic/fix-qunit

[BUGFIX] inspect missing from QUnitAdapter scope
Merge pull request #4526 from rjackson/enable-features-from-20140307-meeting

Enable features given Go status on 2014-03-07.
[BUGFIX beta] Add unit tests for AutoLocation.
ES6 ember-routing: 1.
ES6 ember-routing: 2.
Merge pull request #4540 from mmun/es6-ember-routing

Es6 ember routing
Merge pull request #4529 from slindberg/add-which-to-keyboard-events

[BUGFIX] Add `which` attribute to event triggered by test helper
[BUGFIX beta] Upgrade Backburner to 0.2.0
[BUGFIX beta] Ember.onerror now uses Backburner's error handler - #3401
Merge pull request #4562 from emberjs/backburner-upgrade

[BUGFIX beta] Upgrade Backburner, Switch Ember.onerror to Backburner's handler