Merge pull request #536 from CoiniumServ/develop

mining.subscribe fix.
Update README.md
Update Changelog.md
Update Changelog.md
Update Changelog.md
Merge pull request #560 from CoiniumServ/develop

0.2.2-beta bugfix release
fixed version - 0.2.2-beta.
Merge pull request #561 from raistlinthewiz/develop

fixed version for release