Update PHPUnit version (the the latest v5.* one)
Update PHPUnit version (the the latest v5.* one)

PHPUnit 6+ isn't compatible with PHP 5.6 and for the moment pH7CMS still supports PHP 5.6

pH7Software/pH7-Social-Dating-CMS,pH7Software/pH7-Social-Dating-CMS,pH7Software/pH7-Social-Dating-CMS,pH7Software/pH7-Social-Dating-CMS