Actually keep the delay/threshold in the listener struct.
Actually keep the delay/threshold in the listener struct.

This makes it consistent across all incoming connections, for real this
time (oops).

getlantern/obfs4,PeterCxy/obfs4,ktcunreal/obfs4,afdnlw/obfs4,csersoft/obfs4,bingyuxq/obfs4,thomasf/obfs4