fixing my mistake

.travis.yml

@@ -31,8 +31,8 @@ jobs:
     - set -e
     - gulp typescript-all
     - gulp tests-unit
-#    - travis_retry gulp tests-validation-virtualscreen
-#    - travis_retry gulp tests-validation-browserstack
+    - travis_retry gulp tests-validation-virtualscreen
+    - travis_retry gulp tests-validation-browserstack
     - travis_retry gulp tests-viewer-validation-virtualscreen
     - travis_retry gulp tests-viewer-validation-browserstack
 notifications: