Raise and regulate max block size like difficulty

[Rav3nPL]

Because there is no consensus how and how much raise max block size (we need raise ASAP anyway) maybe make it like difficulty regulation is working?
My proposal on bitcointalk https://bitcointalk.org/index.php?topic=1128357

[laanwj]

Network-wide proposals such as block size hardfork proposals and discussions belong on the bitcoin-dev mailing list, not here.