remove redundant assignment of isDestroyed
improved instrumentation.subscribe docs
[DOC beta] Fix typo in name for `customEvents`

As noticed by @alexdiliberto in http://git.io/KD6Lzg
[DOC beta] Update enumerable.js
[BUGFIX beta] Ensure aliased {{with}} blocks are not shared.

Use prototypal inheritance to ensure that the keywords available within
a `{{#with}}` block are not leaked outside the `{{/with}}`.

Added tests to prevent regression.

Closes #3652.
Closes #3753.

(@twokul && @hjdivad && @rjackson)
[DOC beta] adds more docs to transitionTo
Fix documentation error

Was `Context` and should be `Contact`
[DOC] Add missing link to handlebars.helpers.input in Ember.Checkbox.
Revert "Docs: Fix link in handlebars text field API"

This reverts commit c9be7cf1b968286dd507736076ff70219ad7ddee.
[DOC] Fix instruction for running autotest.
[DOC beta] Add specs for Ember.EventDispatcher#setup
[BUGFIX beta] Make Ember.Handlebars.makeViewHelper warning useful.

* Adds `ember-handlebars-compiler` to the list of packages that are
  tested.
* Uses `ViewClass.toString()` in the assertion thrown from
  `Ember.Handlebars.makeViewHelper`.

Example message before this change:

```
Assertion failed: You can only pass attributes (such as name=value) not bare values to a helper for a View
```

And after (using EAK resolver):

```
Assertion failed: You can only pass attributes (such as name=value) not bare values to a helper for a View found in 'appkit@component:api-file-link:'
```
Programmatic has two "m"s
[BUGFIX beta] Fix issue with Ember.Test.unregisterHelper.

* `Ember.Test.unregisterHelper` will currently error if the helper being
  removed is found within `originalMethods`. The issue is that
  `this.helperContainer` is not available from `Ember.Test` (it is in
  `Ember.Application`).
* `orignalMethods` has been moved into a private property of the
  `Ember.Application` instance (so that we can properly restore the
  original value).
* Added a few tests for the behavior of `registerHelper` and
  `unregisterHelper`.
[DOC] Clarifies typical sendAction use

The previous docs focused heavily on the default behavior of sendAction
instead of the more typical use through configuration and this led
to some feedback about confusion, especially how it overlapped with
plain {{action}} use in the components own template.
Update backburner build
Merge pull request #3765 from abuiles/fix_autotest_instruction

[Doc] Fix instruction for running autotest.
Merge pull request #3778 from lukemelia/programatic

Programmatic has two "m"s
Merge pull request #3763 from southpolesteve/patch-1

Fix Ember.Freezable documentation error
Merge pull request #3761 from twokul/transitionTo-docs

[DOC beta] Adds more docs to transitionTo