libsoup needs better proxy support. There are two parts to this:

1) We need to be able to look up the proxy information per request rather than having a single proxy for all requests in the session. (Needed for PAC, ignore_hosts, etc)

2) We need to be able to use the proxy settings from GConf (or wherever they migrate to in the future), and automatically adjust when they change. This code would go into "libsoup-gnome".