Speedometer: Update to modern production Ember version

Speedometer: Update to modern production Ember version
https://bugs.webkit.org/show_bug.cgi?id=175278

Patch by Mathias Bynens <mathias@qiwi.be> on 2017-08-07
Reviewed by Ryosuke Niwa.

* Speedometer/resources/todomvc/architecture-examples/emberjs/README.md: Added.
* Speedometer/resources/todomvc/architecture-examples/emberjs/index.html: Made title consistent.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/README.md: Documented build process.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/app/components/.gitkeep: Added.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/app/index.html: Made title consistent.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/app/instance-initializers/global.js: Removed.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/app/models/.gitkeep: Added.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/app/router.js: Update to latest version.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/app/routes/.gitkeep: Added.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/app/services/repo.js: Update to latest version
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/app/styles/app.css: Added.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/app/templates/components/.gitkeep: Added.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/bower.json: Update to latest version.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/config/environment.js: Update to latest version.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/dist/*: Added generated files per build instructions.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/package-lock.json: Pinned dependencies.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/package.json: Update to latest version.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/tests/.jshintrc: Removed.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/tests/helpers/module-for-acceptance.js: Updated to latest version.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/tests/helpers/start-app.js: Updated to latest version.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/tests/index.html: Updated to latest version.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/tests/integration/.gitkeep: Added.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/tests/unit/.gitkeep: Added.
* Speedometer/resources/todomvc/architecture-examples/emberjs/source/vendor/.gitkeep: Added.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@220373 268f45cc-cd09-0410-ab3c-d52691b4dbfc