The IDE include checker got to the point where it is actually useful and
this removes a lot of unneeded includes.
Naturally, especially for headers like util.h, this may mean we need to
re-add includes in consuming cpp files that bloats the diff a bit.
We already had in place the blockSizeAcceptLimit as the limit
on messages, which is now the only limit.
In practice this means when the operator sets the maximum mining
size that we adjust the blockSizeAcceptLimit, if they only set the
blockSizeAcceptLimit, we use that (plus a margin) to limit messages
both on the p2p layer and on the RPC (JSON) layer we change the
limit to be twice the blockSizeAcceptLimit (copied those numbers
from BCHN).
John Galt
tomFlowee