Reduce the max-block-size that is used in new networks by default
Reduce the max-block-size that is used in new networks by default

... unless the genesis block is modified manually, or the committee
changes that parameter on the chain.

This fixes the issue that blocks might otherwise become bigger than the
MAX_MESSAGE_SIZE of the p2p code. This far, I am unaware that the p2p
does segmentation of messages.

bitshares/bitshares-2,bitshares/bitshares-2,bitshares/bitshares-2,bitshares/bitshares-2