[BUGFIX beta] {{view}} helper no longer uses Ember.View global, instead uses container view:default
[BUGFIX] isEqual now supports dates
Container throws if injection registered for already instantiated type.

Prior to this commit, the container would happily allow you to register an
injection for a type that had already been instantiated. This led to
confusing-to-debug situations where an injection is registered but a
container-created instance doesn't have the injection applied.

Also covers factoryInjections.
[Bugfix beta] Allow setting of `undefined` value to a `content` property
[BUGFIX beta] Add `title` attribute binding to Ember.TextSupport
fixes #4463
[BUGFIX beta] {{yield}} works inside a Metamorph'ed component

This was working in the simple case, but was previously not working if
the `{{yield}}` was inside a conditional or other metamorph-generating
helper.
[BUGFIX beta] Add better debugging for DefaultResolver.

Adds nice log entries if your application was created with `LOG_RESOLVER`
set.

Example log entries:

```
[ ] route:application .......................................... App.ApplicationRoute
[✓] route:index ................................................ App.IndexRoute
[ ] controller:application ..................................... App.ApplicationController
```
Merge pull request #4479 from bradfol/text-area

[BUGFIX beta] Add `title` attribute binding to Ember.TextSupport
[BUGFIX beta] Fix files that aren't passing JSHint
Merge pull request #4598 from jayphelps/view-helper-no-global

[BUGFIX beta] {{view}} helper no longer uses Ember.View global, instead uses container view:default
Merge pull request #4655 from rjackson/add-resolver-logging

[BUGFIX beta] Add better debugging for DefaultResolver.
Merge pull request #4653 from tomdale/yield-metamorph-components

[BUGFIX beta] {{yield}} works inside a Metamorph'ed component
Merge pull request #4652 from bradfol/jshint-fixes

[BUGFIX beta] Fix files that aren't passing JSHint
[BUGFIX beta] Ensure context is unchanged when using keywords with itemController.

Prior to this change the following code would bind `this` in the
template block to the itemController's content (even though the keyword
form of `{{each}}` is used).

This change sets the child view's `_context` property to the current context when using
the keyword form of `{{each}}`, and a couple of confirming tests to
demonstrate using `itemController` specified in either the
`ArrayController` or the template directly.
Merge pull request #4615 from ghempton/date-isEqual

[BUGFIX] isEqual now supports dates
Remove cruft from ViewTargetActionSupport test
Merge pull request #4656 from machty/target-action-cruft-removal

Remove cruft from ViewTargetActionSupport test
[BUGFIX beta] Lookup actionName in context instead of target
Merge pull request #4658 from hyderali/fix-bound-action-name-each

[BUGFIX beta] Lookup actionName in context instead of target
[BUGFIX beta] resolve the actionName for action helper