use ethereumjs-vm 2.3.1
use ethereumjs-vm 2.3.1

serapath-contribution/browser-solidity,soad003/browser-solidity,Yann-Liang/browser-solidity,soad003/browser-solidity,Yann-Liang/browser-solidity,Yann-Liang/browser-solidity,serapath-contribution/browser-solidity,soad003/browser-solidity,serapath-contribution/browser-solidity