Add version 1.1 download link and readme update.
Add version 1.1 download link and readme update.

jemygraw/qfetch,qiniu-lab/qfetch,songfei9315/qfetch,qiniu-lab/qfetch,qiniu/qfetch,jemygraw/qfetch,qiniu/qfetch,songfei9315/qfetch