* make infoMixingMasternode private
* move PS queue entries expiration checks (and cs_darksend) to CPrivateSendBase
* drop CTxDSOut
* move prevPubKey out of CTxIn into CTxDSIn and use CTxDSIn explicitly
* drop CPrivateSendClient::NewBlock
* move IsDenominatedAmount to CPrivateSend
* move IsCollateralAmount to CPrivateSend
* drop darksend-relay.cpp/h
* drop GetMasternodeByRank
* Add protocol details for mnv, dsf, dsc, govsync, dseg, ssc, and mnget messages
Remove duplicate ix message
* Update markdown table formatting
* Add CTransaction
* Add links from field name to Common Structures for reference
* Add CService structure and update links
* Revert behaviour introduced in 5e1a6afe7f, make nLastDsq local variable instead of being network-wide one. Should fix mixing for new clients and for those who was offline for too long.
* fix docs
