now sends user agent to all requests that go through a http proxy

lib/url.c

@@ -1109,7 +1109,7 @@ static UrgError _urlget(struct UrlData *data)
     data->ptr_proxyuserpwd = maprintf("Proxy-authorization: Basic %s\015\012",
 				      authorization);
   }
-  if(data->conf & (CONF_HTTPS|CONF_HTTP)) {
+  if(data->conf & (CONF_HTTPS|CONF_HTTP|CONF_PROXY)) {
     if(data->useragent) {
       data->ptr_uagent = maprintf("User-Agent: %s\015\012", data->useragent);
     }