Removed bad JS tests, upgrade QUnit + ember-qunit

test/javascripts/components/ace-editor-test.js.es6

@@ -0,0 +1,6 @@
+moduleForComponent('ace-editor', {needs: []});
+
+test('changing colors', function(assert) {
+  assert.expect(0);
+  var component = this.subject();
+});

test/javascripts/components/text-field-test.js.es6

@@ -0,0 +1,17 @@
+moduleForComponent("text-field", {needs: []});
+
+test("renders correctly with no properties set", function() {
+  var component = this.subject();
+  equal(component.get('type'), "text");
+});
+
+test("support a placeholder", function() {
+  sandbox.stub(I18n, "t").returnsArg(0);
+
+  var component = this.subject({
+    placeholderKey: "placeholder.i18n.key"
+  });
+
+  equal(component.get('type'), "text");
+  equal(component.get('placeholder'), "placeholder.i18n.key");
+});