Merge pull request #3 from eggnaube/master

Update buildmatrix to include PHP 5.5 & 5.6

Author: simensen

.travis.yml

@@ -4,6 +4,8 @@ php:
   - 5.3.3
   - 5.3
   - 5.4
+  - 5.5
+  - 5.6
 
 before_script:
   - wget -nc http://getcomposer.org/composer.phar