logging key/values updated to system testing spec
logging key/values updated to system testing spec

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