Merge pull request !297 from wanwan/master
Merge pull request !294 from wanwan/master
Merge pull request !293 from puhui999/dev-to-dev
Merge pull request !286 from wanwan/master
Merge pull request !285 from souvc/master
Merge pull request !290 from Youkehai/feature/addSignAndSubSign
Merge pull request !284 from puhui999/dev-to-dev