Merge pull request #1189 from BernardoSilva/patch-1

Use container-based infrastructure for travis builds.

Author: malarzm

.travis.yml

@@ -1,3 +1,4 @@
+sudo: false
 language: php
 
 php:
@@ -29,4 +30,4 @@ script:
 
 after_script:
     - wget https://scrutinizer-ci.com/ocular.phar
-    - php ocular.phar code-coverage:upload --format=php-clover coverage.clover
+    - php ocular.phar code-coverage:upload --format=php-clover coverage.clover