clean up constructor a bit
clean up constructor a bit

arowla/scrapelib,sunlightlabs/scrapelib,fgregg/scrapelib,JoeGermuska/scrapelib,dvogel/scrapelib,jamesturk/scrapelib,fgregg/scrapelib,arowla/scrapelib,JoeGermuska/scrapelib,dvogel/scrapelib,pombredanne/scrapelib