FEATURE: Multiple embeddable hosts

- Also refactors two site settings components into one, with tests

test/javascripts/components/value-list-test.js.es6

@@ -0,0 +1,31 @@
+moduleForComponent('value-list', {integration: true});
+
+test('functionality', function(assert) {
+  andThen(() => {
+    this.render('{{value-list value=values}}');
+  });
+
+  andThen(() => {
+    assert.ok(this.$('.values .value').length === 0, 'it has no values');
+    assert.ok(this.$('input').length, 'it renders the input');
+    assert.ok(this.$('.btn-primary[disabled]').length, 'it is disabled with no value');
+  });
+
+  fillIn('input', 'eviltrout');
+  andThen(() => {
+    assert.ok(!this.$('.btn-primary[disabled]').length, "it isn't disabled anymore");
+  });
+
+  click('.btn-primary');
+  andThen(() => {
+    assert.ok(this.$('.values .value').length === 1, 'it adds the value');
+    assert.ok(this.$('input').val() === '', 'it clears the input');
+    assert.ok(this.$('.btn-primary[disabled]').length, "it is disabled again");
+  });
+
+  click('.value .btn-small');
+  andThen(() => {
+    assert.ok(this.$('.values .value').length === 0, 'it removes the value');
+  });
+
+});