Imports code.google.com/p/rsc/gf256 code.google.com/p/rsc/qr/coding code.google.com/p/rsc/qr/web/resize code.google.com/p/freetype-go/freetype code.google.com/p/rsc/appfs/fs code.google.com/p/rsc/qr Standard library imports image/draw image/png image/color crypto/md5 image/jpeg image/gif bytes encoding/base64 encoding/json fmt html/template image io math/rand net/http net/url os sort strconv strings time