unbound helper supports bound helper static strings
[BUGFIX beta] Ensure that ember-debug uses EmberENV.

This brings `ember-debug` in sync with the way `packages/ember-metal/lib/core.js`
pulls in `Ember.ENV`.

See https://github.com/emberjs/ember.js/pull/3947 for more info.
[DOC beta] minor fix
Merge pull request #4029 from twokul/join-doc-fix

[DOC beta] minor fix
[BUGFIX beta] Enable building on Windows.

Updates `ember-dev` to 87bc39887fdd1fb7332bebad0c91b57fedef059f.

Fixes https://github.com/emberjs/ember.js/issues/4027.

Thanks to @brzpegasus for tracking this down!
Merge pull request #4031 from rjackson/enable_builds_on_windows

[BUGFIX beta] Enable building on Windows.
[DOC beta] Cleanup documentation for Location API.
[DOC beta] Update RSVP.js documentation.

This brings the vendored version of RSVP up to date with the
documentation changes made in https://github.com/tildeio/rsvp.js/pull/184.

------------

Fix list in `Promise.cast` documentation.

Before:

![screenshot](https://www.monosnap.com/image/OBr2UV08Mi8KSCAPne3TNA1kU.png)

After:

![screenshot](https://www.monosnap.com/image/NS4P8uTrGECtCbK4zK4f4rmLE.png)

YUIDoc will only use documentation found within a code block before any
directives. This means that if you start a code block with `@private`
none of the documentation text for that method/property will be in the
generated output.

Example before:

![screenshot](https://www.monosnap.com/image/RnIb3AFAAcTAaqZoenxZmPGDR.png)

Example after:

![screenshot](https://www.monosnap.com/image/9AuWbnfa3RMJgAGMedbfnLLRN.png)
Merge pull request #4034 from rjackson/update_rsvp_docs

[DOC beta] Update RSVP.js documentation.
Merge pull request #4033 from rjackson/cleanup_location_api_docs

[DOC beta] Cleanup documentation for Location API.
[DOC beta] Generate documentation for ember-extension-support.

Cleans up the docs, and adds the package to the `YUIDoc` config.
Merge pull request #3977 from sly7-7/unbound-with-bound-and-statics

[BUGFIX Beta] unbound helper supports bound helper static strings
Merge pull request #4024 from rjackson/document_ember_extension_support

[DOC beta] Generate documentation for ember-extension-support.
Merge pull request #4025 from rjackson/ensure_debug_follows_same_env_vars

[BUGFIX beta] Ensure that ember-debug uses EmberENV.