Moves Ember app to new UI 🚚

refs #1110

- upgrade to new UI
- didn't migrate to npm as they are not hosted there in ember's case
- fixed a little bug on 'Clear completed' button as it wa missplaced with new styles

examples/emberjs/.gitignore

@@ -0,0 +1,22 @@
+node_modules/.bin
+node_modules/jquery
+!node_modules/jquery/dist/jquery.js
+
+node_modules/components-ember
+!node_modules/components-ember/ember.js
+
+node_modules/ember-data
+!node_modules/ember-data.js
+
+node_modules/ember-localstorage-adapter
+!node_modules/ember-localstorage-adapter/localstorage_adapter.js
+
+node_modules/handlebars
+!node_modules/handlebars/dist/handlebars.js
+
+node_modules/todomvc-app-css
+!node_modules/todomvc-app-css/index.css
+
+node_modules/todomvc-common
+!node_modules/todomvc-common/base.css
+!node_modules/todomvc-common/base.js