http: change localhost URL; maybe fix Windows
http: change localhost URL; maybe fix Windows

R=golang-dev, rsc, bradfitzwork
CC=golang-dev
http://codereview.appspot.com/4259048

pombredanne/go-deleteme,gnanderson/go,tv42/old-go,apparentlymart/golang,apparentlymart/golang,pombredanne/go-deleteme,ssrl/go,tv42/old-go,gnanderson/go,apparentlymart/golang,ssrl/go,ssrl/go,ssrl/go,dsriram/golang,ssrl/go,tv42/old-go,apparentlymart/golang,dsriram/golang,dsriram/golang,gnanderson/go,tv42/old-go,tv42/old-go,tv42/old-go,dsriram/golang,apparentlymart/golang,tv42/old-go,ssrl/go,dsriram/golang,pombredanne/go-deleteme,pombredanne/go-deleteme,pombredanne/go-deleteme,pombredanne/go-deleteme,apparentlymart/golang,gnanderson/go,dsriram/golang,apparentlymart/golang,pombredanne/go-deleteme,gnanderson/go,ssrl/go,gnanderson/go,gnanderson/go,dsriram/golang