Disabled sudo in Travis

Author: JakubOnderka

.travis.yml

@@ -7,9 +7,16 @@ php:
   - 5.6
   - 7.0
   - hhvm
+  
+sudo: false
+
+cache:
+  directories:
+    - vendor
+    - $HOME/.composer/cache
 
 before_script:
   - composer install --no-interaction --prefer-source
 
 script:
-  - ant
+  - ant