Add PHP 7.1 CI tests (#2829)
Add PHP 7.1 CI tests (#2829)


renothing/kanboard,oliviermaridat/kanboard,kanboard/kanboard,renothing/kanboard,oliviermaridat/kanboard,filhocf/kanboard,stinnux/kanboard,patoi/kanboard,Busfreak/kanboard,fguillot/kanboard,Busfreak/kanboard,filhocf/kanboard,filhocf/kanboard,renothing/kanboard,libin/kanboard,thylo/kanboard,libin/kanboard,BlueTeck/kanboard,fguillot/kanboard,Shaxine/kanboard,Busfreak/kanboard,patoi/kanboard,thylo/kanboard,lianguan/kanboard,lianguan/kanboard,Shaxine/kanboard,stinnux/kanboard,xavividal/kanboard,fguillot/kanboard,lianguan/kanboard,xavividal/kanboard,kanboard/kanboard,oliviermaridat/kanboard,BlueTeck/kanboard,stinnux/kanboard,patoi/kanboard,kanboard/kanboard,BlueTeck/kanboard,Shaxine/kanboard,thylo/kanboard,xavividal/kanboard