Update copyright date in manual.
Update copyright date in manual.

darcs-hash:20050919194539-4cc09-deccc6e196fd173266938cae7c1b4fb32e9e0e2e.gz

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