refactor namespace

Author: ilvalerione

.travis.yml

@@ -17,6 +17,10 @@ matrix:
   exclude:
       - php: 7.0
         env: LARAVEL_VERSION=5.6.*
+      - php: 7.0
+        env: LARAVEL_VERSION=5.7.*
+      - php: 7.0
+        env: LARAVEL_VERSION=5.8.*
 
 before_script:
   - composer install --no-interaction