Refactor urlFilename.
Refactor urlFilename.

darcs-hash:20060903232734-4cc09-96d474d9cb26e85a302f015e0c7641965c0ac22f.gz

ssb22/polipo2,clowwindy/polipo,lkraider/polipo,jech/polipo,akkakks/polipo,jech/polipo,TierraDelFuego/opilop,feijilei/polipo,dxq-git/polipo,lkraider/polipo,berkley4/polipo,lkraider/polipo,Psiphon-Inc/polipo,toke/polipo,akkakks/polipo,feijilei/polipo,Android-Apps/polipo,galeksandrp/polipo,berkley4/polipo,doublec/namecoin-polipo,dxq-git/polipo,fqtools/polipo,strongwillow/polipo,jeromelebel/polipo,feijilei/polipo,galeksandrp/polipo,ajmgh/polipo,caeies/polipo-caeies,dxq-git/polipo,danchr/polipo,jech/polipo,berkley4/polipo,nxtreaming/chumen,fqtools/polipo,strongwillow/polipo,gorakhargosh/polipo,fqtools/polipo,Android-Apps/polipo,fukusaka/polipo,galeksandrp/polipo,akkakks/polipo,ssb22/polipo2,nxtreaming/chumen,nxtreaming/chumen,ssb22/polipo2