Removed json-rpc submodule - added it as nuget package as it does have a fixed nuget package now.
Fixes #545.
Closes #543.
Merge pull request #546 from raistlinthewiz/develop

Removed json-rpc submodule - added it as nuget package
Moved Hashrate.cs to Utils/Helpers/Humanize.cs.
Implemennted GetReadableDifficulty() - fixes #534.
Moved helper functions to Utils/Helpers root.
Updated nuget packages;
* metrics.net to 0.2.1
* dapper to 1.35
* serilog to to 1.4.12.
added .gitattributes
ADded submitblock() detection support.
Implemented ICoinConfig:SubmitBlockSupported - so that coins like usde without submitblock() support are also supported now - fixes #554.
Added a lock to collection modifications within MinerManager.cs - fixes #550.
Fixed #550 - another bug reported where OnDataRecieved() wasn't checking for null references.
Included mooncoin.json, noblecoin.json, usde.json and viacoin.json in project.
Updated the message for rejected blocks by daemon - fixes #553.
removed an already implemented todo comment line.
Merge pull request #559 from raistlinthewiz/develop

0.2.2 fixes
Merge pull request #560 from CoiniumServ/develop

0.2.2-beta bugfix release