Make travis test php-5.5 as well
Make travis test php-5.5 as well

matslindh/imbo,christeredvartsen/imbo,rexxars/imbo,kbrabrand/imbo,TV2/imbo,matslindh/imbo,TV2/imbo,androa/imbo,rexxars/imbo,christeredvartsen/imbo,imbo/imbo,christeredvartsen/imbo,kbrabrand/imbo,androa/imbo,imbo/imbo