UDapp: fix web3 event logging
UDapp: fix web3 event logging

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