All chain tests passing, some cleanups
All chain tests passing, some cleanups

changwu-tw/pyethapp,RomanZacharia/pyethapp,ethereum/pyethapp,changwu-tw/pyethapp,ethereum/pyethapp,gsalgado/pyethapp,RomanZacharia/pyethapp,kustomzone/pyethapp,heikoheiko/pyethapp,vaporry/pyethapp,gsalgado/pyethapp,danielnovy/test,d-das/pyethapp