remove redundant assignment of isDestroyed
[BUGFIX beta] Added assert mismatched template compiler version.

See #3728. Using an old version of Ember to precompile templates
can result in an unusual error when trying to render a component
in block form, e.g.

```
  {{#my-component}}Hello{{/my-component}}
```

This commit adds an assert to give the user more information
as to what's going on.
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
[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.
Merge pull request #3729 from machty/block-helper-missing-assert

[BUGFIX beta] Added assert mismatched template compiler version.
[BUGFIX beta] Publish ember-handlebars-compiler along with builds.

The compiler has been under some flux lately, and 1.2.0-beta.3's
compiler is not compatible with 1.1.2's.

This change will allow the `ember-handlebars-compiler` to be published
to the same `builds.emberjs.com` hierarchy as the rest of the assets.
Merge pull request #3776 from rjackson/publish_template_compiler

[BUGFIX beta] Publish ember-handlebars-compiler along with builds.
Programmatic has two "m"s
[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.
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
Merge pull request #3759 from pangratz/fix/typos

[DOC beta] Fix typo in name for `customEvents`