config: add TIMEOUT config option

Defaults to 45s instead of the 30s that Sinopia defaults to. This is
because the intended use-case for this module is in chained npm
registries. When registries are chained together in this fashion, the
initial request for a module may result in it being transferred between
multiple sites before getting to the client.

Author: rmg

sinopia.sh

@@ -14,6 +14,7 @@ uplinks:
   upstream:
     url: $(npm config get registry)
     maxage: ${MAXAGE:-5m}
+    timeout: ${TIMEOUT:-45s}
 packages:
   '*':
     access: \$all