Implemented: Adds moar PHP versions to travis build.

Author: adri

.travis.yml

@@ -1,8 +1,15 @@
 language: php
 php:
+ - 5.6
  - 5.5
  - 5.4
  - 5.3
+ - hhvm
+
+matrix:
+ fast_finish: true
+ allow_failures:
+ - php: hhvm
 
 before_script:
  - composer install