Cleanup unused var
[bugfix beta] Fix #4604 ComputedPropertyPrototype.didChange only calls removeDependentKeys if the individual cache for the specific key is not undefined, instead of the cache itself
Update for publishing to bower with Travis.

Travis doesn't have an ssh-agent setup (so ssh-add -D was failing for
example).
Ensure the correct key is used for fetching components/ember.
Merge pull request #4612 from endash/fix-4604

Fix #4604 ComputedPropertyPrototype.didChange only calls removeDependent...
[Bugfix beta] Route#render name vs viewName precedence fix

Fixes #4248: Passing an explicit name parameter to Route#render
should not have the associated view for that name be overriden
by Route#viewName.
This ensures that in the case of rendering to multiple outlets, and
later changing the viewName property, the only outlet to have its
view changed should be the main one.
Add support for required property in checkbox
Merge pull request #4621 from bakura10/patch-1

Add support for required property in checkbox
[DOC] Fixed HTML closing tag in example result.
Merge pull request #4622 from jayphelps/patch-2

[DOC] Fixed HTML closing tag in example result.
[FEATURE ember-handlebars-log-primitives] Remove flags.
[FEATURE ember-testing-routing-helpers] Remove feature flags.
[FEATURE ember-testing-triggerEvent-helper] Remove feature flags.
[DOC] Add docs for MutableArray addObject and removeObject

* Add docs for addObject & remove Object, closes #4618
* Clean up code style and various docs on MutableArray
* Update old observer syntax example
Merge pull request #4624 from mixonic/doc-add-remove-object

[DOC] Doc add remove object
[FEATURE computed-read-only] Remove feature flags.
[FEATURE ember-metal-is-blank] Remove feature flags.
[FEATURE ember-eager-url-update] Remove feature flags.
[FEATURE ember-routing-auto-location] Remove feature flags.
[FEATURE ember-routing-bound-action-name] Remove feature flags.