v0.2.12
Fixed an issue with block difficulty checks that prevented blocks of insufficient difficulty from being broadcast.
Solve the problem that when multiple blocks are validated at the same time, the transaction pool and the highest bid record do not match, resulting in miners generating invalid blocks.
Fixed a bug in the tx pool that would cause transactions with small bidding fee gaps to not be able to enter the transaction pool, resulting in blocks generated by honest miners not containing the highest bid.
All miners must be updated.
Fixed this: #10
