GitLab

- refactored CActiveMasternode
- added masternodeconfig to handle remote masternode configuration
- read masternodeconfig upon init
- new masternode rpc commands: stop-many, start-alias, stop-alias, list-conf
- added notCapableReason field for better handling not capable issues

This doesn't include any of the changes in the darkcoin/v0.10.18.x branch. Those will be brought over into this commit history.