Merge pull request tronprotocol#2023 from tronprotocol/decrease_cpu_u…

…sage

decrease cpu usage

Merge pull request tronprotocol#2021 from tronprotocol/develop

merge changes

sync with demo code

Merge pull request tronprotocol#1965 from tronprotocol/releases_easyt…

…ransferasset

Releases easytransferasset

Merge pull request tronprotocol#1932 from tronprotocol/update_version

Update version to 3.2.4

Merge pull request tronprotocol#1874 from tronprotocol/change_version…

…_number

upgrade version to 3.2.3

Merge pull request tronprotocol#1848 from tronprotocol/mdfunittest

mdf some net unit test

fix solidity do not sync

update code version 3.2.1.1

Merge pull request tronprotocol#1793 from tronprotocol/soliditynode_u…

…se_fullnode_databse

fix