update caddy 0.9.4 and add autoupdate support
update caddy 0.9.4 and add autoupdate support

kodybrown/scoop,nikolasd/scoop,Congee/scoop,r15ch13/scoop,bpollack/scoop,yunspace/scoop,vinaynambiar/lukesampson-,berwyn/scoop,reelsense/scoop,rodericktech/scoop,vidarkongsli/scoop,lukesampson/scoop,rasa/scoop,coonce/scoop,nueko/scoop,toxeus/scoop,Cyianor/scoop