v5.0.0
Merge pull request #39 from xushiwei/feature/v5

v5.0.0
doc
Update README.md
Update README.md
Update README.md
Update README.md
Update README.md
gist
Merge branch 'v5' of github.com:qiniu/c-sdk into feature/v5
Merge remote branch 'origin/feature/v5' into feature/v5
Update README.md
mv README.md => README.gist.md
Merge pull request #40 from xushiwei/feature/v5

README gist
Update README.gist.md
Update README.gist.md
Update README.gist.md
Update README.gist.md
Update README.gist.md
Update README.gist.md