Merge pull request #876 from WeBankBlockchain/lab-dev

3.1.1 master

Merge pull request #863 from WeBankBlockchain/lab-dev

Update release_note.txt

Merge pull request #845 from WeBankBlockchain/dev

fix web of front 1.5.5

Merge pull request #843 from WeBankBlockchain/lab-dev

fix depend

Merge pull request #798 from WeBankBlockchain/lab-dev

3.0.0 dev->lab

Merge pull request #766 from WeBankBlockchain/lab-dev

Lab-dev(rc2) to lab

Merge pull request #709 from WeBankBlockchain/dev

v1.5.4 dev=>master

Merge pull request #702 from CodingCattwo/dev-3.0

Update Changelog.md

Merge pull request #662 from WeBankFinTech/dev

fix decode bytes output

Merge pull request #632 from WeBankFinTech/dev

v1.5.2 dev=>master