* Do not run scheduled DoMaintenance if shutdown was requested
* Don't dump cache files if the load sequence was interrupted
* Stop privatesend and release keys before wallet flush
* fix typo
* Switch CNetFulfilledRequestManager and CMasternodeMan maps/funcs to CService
This is to make them work correctly on regtest.
We make sure that behaviour on other networks is not affected though.
* Add fAllowMultiplePorts to chainparams
Tweak either we should allow nodes with the same address and multiple ports or not for this specific chain
