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.
This makes minor renames and cleanups.
We merge the 5 different cashtoken booleans into one, making
usage and server-code simpler.
And probably in real use not actually causing bigger messages.
This affects both the BlockChain/GetBlockHeaderReply and the
BlockChain/GetBlockVerboseReply calls.
The field with id 75 was confusingly called 'bits', but this is really
the blocktarget from the blockheaders. We renamed this.
This field is a int-encoded-floating point value and as such it makes no
sense to send it as a simple int. It is now a byte-array.
Notice that the documentation always listed it as a byte-array so we
actually fixed the implementation to follow the spec.
These are technically static libs, but not in any way shared libs.
They are used solely only by this repo and really only by the hub.
Most important, no header files are installed and basically none of
the normal rules for reusable libraries are applied to these files.
tomFlowee
John Galt