Resolve nginx static file bug

http://smotko.si/nginx-static-file-problem/ describes this problem and the Vagrant docs also support the idea that nginx has a bug when used with Virtualbox.

Disabling sendfile prevents this from being an issue.

Author: joahua

nginx-site.conf

@@ -26,6 +26,8 @@ server {
 
 	# Make site accessible from http://localhost/
 	server_name localhost;
+	
+	sendfile off; # as per https://docs.vagrantup.com/v2/synced-folders/virtualbox.html
 
 	location / {
 		# First attempt to serve request as file, then