Update Makefile

Merge pull request #74 from bitcore-btx/dev_7

Update masternode.cpp

Update masternode-payments.cpp

Update masternode.cpp

Update masternode.cpp

Update masternode-payments.cpp

Update masternode-payments.cpp

Update masternode-payments.cpp

Update masternode.cpp

Update masternode-payments.cpp

Update chainparams.cpp

Update masternodeman.cpp

Update net.cpp

Update net.cpp