Update nginx to 1.9.0
Update nginx to 1.9.0

1.9.0 is the current mainline version.
ShwoognationHQ/scoop,damnhandy/scoop,bpollack/scoop,Cyianor/scoop,barohatoum/scoop,r15ch13/scoop,rmyorston/scoop,rodericktech/scoop,pacificcoast/scoop,yunspace/scoop,ErnWong/scoop,deepwaterdiver/scoop,DarylWright/scoop,bcomnes/scoop,reelsense/scoop,Congee/scoop,systemexitzero/scoop,barohatoum/scoop,kodybrown/scoop,guillermooo-forks/scoop,nueko/scoop,vinaynambiar/lukesampson-,devoncarew/scoop,lukesampson/scoop,dennislloydjr/scoop,saildata/scoop,rivy/scoop,coonce/scoop,huncrys/scoop,pacificcoast/scoop,moigagoo/scoop,rivy/ladle,dennislloydjr/scoop,deepwaterdiver/scoop,toxeus/scoop,nikolasd/scoop,seonho/scoop,deevus/scoop-powershell2,rasa/scoop,vidarkongsli/scoop,huncrys/scoop,berwyn/scoop,rivy/ladle