Manually broadcast last accepted block
Manually broadcast last accepted block

to prevent a possible attack where accepted blocks are never broadcast.

NebulousLabs/Sia,ericflo/Sia,mnsl/Sia,mnsl/Sia,mharkus/Sia,ericflo/Sia,ChrisSchinnerl/Sia,johnathanhowell/Sia,MrStrong/Sia,mtlynch/Sia,ChrisSchinnerl/Sia,MrStrong/Sia,mharkus/Sia,NebulousLabs/Sia,rivine/rivine,mtlynch/Sia,rivine/rivine