[DOC] Correction for `ActionHandler` implementing classes
fixed run.bind to keep the arguments from the callback.
[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
Do not override local scope with imported Ember.run in Ember.Test.
Merge pull request #4530 from rjackson/fix-issue-with-es6ing-ember-testing

Do not override local scope with imported Ember.run in Ember.Test.
[DOC] minor doc fix
Merge pull request #4531 from twokul/minor-doc-fix

[DOC] minor doc fix
fix run.bind tests
fixed variable name
removed unnecessary obj and value since all we need is to check the arguments
fixed function instead of var syntax error
fixed forgotten target
fix doc typo
Merge pull request #4539 from denisnazarov/patch-3

fix doc typo
[BUGFIX beta] Throw error on `Maximum call stack size exceeded`
ES6 ember-handlebars & ember-handlebars-compiler: 1.
ES6 ember-handlebars & ember-handlebars-compiler: 2.
ES6 ember-handlebars & ember-handlebars-compiler: 3.