Changed integration tests element selector to use 'by.css' instead of 'by.id'

Author: Sebastian Florek

src/app/frontend/deploy/deploy.html

@@ -45,7 +45,7 @@ <h3 class="md-headline kd-deploy-form-title">Deploy a Containerized App</h3>
         </deploy-from-file>
       </div>
 
-      <md-button id="kd-deploy-btn" class="md-raised md-primary" type="submit"
+      <md-button class="md-raised md-primary kd-deploy-btn" type="submit"
                  ng-disabled="ctrl.isDeployDisabled()">
         Deploy
       </md-button>

src/test/integration/deploy/deploy_po.js

@@ -14,7 +14,7 @@
 
 export default class DeployPageObject {
   constructor() {
-    this.deployButtonQuery = by.id('kd-deploy-btn');
+    this.deployButtonQuery = by.css('.kd-deploy-btn');
     this.deployButton = element(this.deployButtonQuery);
 
     this.appNameFieldQuery = by.model('ctrl.name');