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Merge pull request goplus#309 from wangkuiyi/pre-commit

Call gofmt at git commit time

Merge pull request goplus#286 from xushiwei/r

exec/golang: rational number

Merge pull request goplus#262 from xushiwei/q

prof

Merge pull request goplus#248 from qiniu/gop

errorf

Merge pull request goplus#224 from qiniu/v6.x

closure: bug fixed; qgo -test

Merge pull request goplus#221 from qiniu/feature/go

flow & func

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v1.5.0

v1.2.0