[BUGFIX beta] Use dom helper for setting properties, drop hasOwnProperty
[BUGFIX beta] Swap nodeType for type check
[BUGFIX beta] Only start hydrating morphs if there are legacy childViews
Removes obsolete files

Seems like it's not needed anymore. If that's not the case, feel free to
close this PR.
Merge pull request #9898 from twokul/obsolete-file

Removes obsolete file
[BUGFIX beta] expose Ember.Backburner

exposes Backburner on Ember for private use by
Ember Data.
Merge pull request #9937 from fivetanley/feature-ember-metal-expose-backburner

[bugfix beta] expose Backburner as Ember.Backburner
[BUGFIX beta] Use a shared util for classNameBindings
Run Ember in node

This commit removes any strict dependencies on browser-only APIs.
Anything user agent specific (such as window, document, etc.) are
abstracted out into a new `environment` object.

Currently we feature detect whether a DOM implementation is available
and only enable certain behavior if so. The intent of the feature
detection is to determine if a DOM implementation is available, not
whether we’re running in the browser or in node. This makes it possible
to run Ember in a node environment with a “fake” DOM.

This commit also introduces some refactoring to the location APIs, such
that hardcoded document/history/navigator dependencies are reduced.

Note that some APIs are guarded with `environment.hasDOM` checks.
Code inside those guards can freely use DOM APIs, but some of those
APIs are needed for full server-side usage of Ember. This is a first
step that is designed to explicitly separate out code with DOM
dependencies from isomorphic code. Further PRs will implement the
Renderer and Location APIs for non-DOM environments.
Merge pull request #9931 from mixonic/class-name-bindings

[BUGFIX beta] Use a shared util for classNameBindings
[BUGFIX beta] Failing tests for instrument without payload
[BUGFIX beta] Support instrument without payload
Merge pull request #9947 from raycohen/intrument-without-payload

when no payload is passed to instrument, manage args properly
clean up createChildView

This makes the code more clear and prevents
overwriting arguments which likely causes
de-opts (though these fns probably still
de-opt for other reasons).
Add tests for node compatibility
Merge pull request #9949 from machty/create-child-view-cleanup

clean up createChildView
Add CommonJS build of Ember
Don’t generate docs for feature detection code
Don’t recompile for CJS build
Merge pull request #9941 from emberjs/runs-in-node

Run Ember in node