hina: nginx: limit HTTP requests to 4 ranges

Nginx appears to hang when >= 6 ranges are used in a HTTP request. Limit
the number of allowed ranges to 4 to prevent issues.

files/hina/nginx.conf

@@ -32,6 +32,10 @@ http {
 
     keepalive_timeout  65;
 
+    # Nginx verkar hänga sig när >= 6 spann används. Begränsa
+    # till 4 spann.
+    max_ranges 4;
+
     server_tokens off;
     more_clear_headers 'Server';