refactor txProposal input signature handling
mocha tests passing
rm log
fix formatting
Merge pull request #1172 from matiu/big/inputSig3

Big/input sig3
v0.4.7
Merge pull request #1173 from matiu/v0.4.7

v0.4.7
starting with async networking
fixing stuff
basic stuff working
add socket.io-browserify
remove onlyYou message
only you
fix error handling
socket.io+browserify=😻
getting to intermediate screen!
working towards refactoring network
remove alerts
trying to get past intermediate screen
fix Async to remove soop