set response.url to requested url if no content-location response header
set response.url to requested url if no content-location response header

dvogel/scrapelib,fgregg/scrapelib,arowla/scrapelib,jamesturk/scrapelib,mikejs/scrapelib,dvogel/scrapelib,olberger/scrapelib,h4ck3rm1k3/scrapelib,h4ck3rm1k3/scrapelib,JoeGermuska/scrapelib,JoeGermuska/scrapelib,sunlightlabs/scrapelib,olberger/scrapelib,arowla/scrapelib,pombredanne/scrapelib,fgregg/scrapelib