travisci fix

.travis.yml

@@ -1,24 +1,35 @@
-language: php
+matrix:
+  include:
+      - language: php
 
-php:
+        php:
             - 7.1.3
             - 7.2
             - 7.3
 
-before_script:
+        before_script:
             - cp configuration_sample.php configuration.php
             - composer self-update
             - composer install --no-interaction
-  - npm install
 
-script:
+        script:
             - vendor/bin/phpunit --coverage-clover=coverage.xml
-  - npm run lint
 
-after_success:
+        after_success:
             - bash <(curl -s https://codecov.io/bash)
 
               # Installs Sensiolabs security checker to check against unsecure libraries
             - php -r "readfile('http://get.sensiolabs.org/security-checker.phar');" > security-checker
             - chmod +x security-checker
             - ./security-checker security:check
+
+    - language: node_js
+
+        node_js:
+            - "7"
+
+        before_script:
+            - npm install
+
+        script:
+            - npm run lint