Added .travis.yml before_script

.travis.yml

@@ -21,6 +21,12 @@ matrix:
 install:
   - travis_retry composer install --no-interaction --prefer-source
 
+before_script:
+  - cd examples/
+  - composer install
+  - cd public/
+  - php -S localhost:7777 index.php &
+
 script:
   - mkdir -p build/logs
   - vendor/bin/codecept run