Revert "Merge pull request #1130 from deweerdt/proxy-dont-normalize-unix-path"
Revert "Merge pull request #1130 from deweerdt/proxy-dont-normalize-unix-path"

This reverts commit 4d1e4925c2f80a2ffa7911f90e51df99402255ee, reversing
changes made to 15ff52ea349030143679de79c85172c211acf9b0.

devnexen/h2o,rayrapetyan/h2o,lkwg82/h2o,i110/h2o,lkwg82/h2o,devnexen/h2o,h2o/h2o,i110/h2o,h2o/h2o,cubicdaiya/h2o,h2o/h2o,devnexen/h2o,yannick/h2o,lkwg82/h2o,deweerdt/h2o,h2o/h2o,cubicdaiya/h2o,i110/h2o,i110/h2o,lkwg82/h2o,cwyang/h2o,h2o/h2o,cubicdaiya/h2o,rayrapetyan/h2o,devnexen/h2o,h2o/h2o,tamediadigital/h2o,rayrapetyan/h2o,yannick/h2o,rayrapetyan/h2o,zlm2012/h2o,cwyang/h2o,tamediadigital/h2o,cwyang/h2o,tamediadigital/h2o,zlm2012/h2o,rayrapetyan/h2o,tamediadigital/h2o,deweerdt/h2o,h2o/h2o,cubicdaiya/h2o,yannick/h2o,yannick/h2o,cubicdaiya/h2o,cwyang/h2o,zlm2012/h2o,devnexen/h2o,yannick/h2o,tamediadigital/h2o,cwyang/h2o,lkwg82/h2o,deweerdt/h2o,h2o/h2o,deweerdt/h2o,deweerdt/h2o,zlm2012/h2o,i110/h2o,lkwg82/h2o,cwyang/h2o,tamediadigital/h2o,yannick/h2o,h2o/h2o,tamediadigital/h2o,cubicdaiya/h2o,rayrapetyan/h2o,deweerdt/h2o,i110/h2o,i110/h2o,deweerdt/h2o,rayrapetyan/h2o,i110/h2o,rayrapetyan/h2o,lkwg82/h2o,deweerdt/h2o,rayrapetyan/h2o,yannick/h2o,cubicdaiya/h2o,zlm2012/h2o,zlm2012/h2o,deweerdt/h2o,i110/h2o,lkwg82/h2o,cwyang/h2o,zlm2012/h2o,i110/h2o,yannick/h2o,yannick/h2o,zlm2012/h2o,lkwg82/h2o,cubicdaiya/h2o,devnexen/h2o,cwyang/h2o,devnexen/h2o,zlm2012/h2o,tamediadigital/h2o,devnexen/h2o,rayrapetyan/h2o,devnexen/h2o,tamediadigital/h2o