Urls can now be claimed by remotes. This will allow creating, for example, a external special remote that handles magnet: and *.torrent urls.

Remote/Rsync.hs

@@ -85,6 +85,7 @@ gen r u c gc = do
 			, mkUnavailable = return Nothing
 			, getInfo = return [("url", url)]
 			, claimUrl = Nothing
+			, checkUrl = const $ return Nothing
 			}
   where
 	specialcfg = (specialRemoteCfg c)