Implement dontTrustVaryETag.
Implement dontTrustVaryETag.

This can be used to work around the incorrect handling of ETag in
Apache's mod_deflate.

darcs-hash:20061127080524-4cc09-23c285f2b4129e97fd29cbcafacc2c552bd88207.gz

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