WebSockets support (fixes #18)
WebSockets support (fixes #18)

aaw/docker-nginx,aaw/docker-nginx,apnarm/docker-nginx,fancyremarker/docker-nginx,aptible/docker-nginx,aptible/docker-nginx,100health/docker-nginx,apnarm/docker-nginx,aptible/docker-nginx,100health/docker-nginx,fancyremarker/docker-nginx