Message when trying to start the node and node is already running

[despotak]

When a FMN is running and you type again fundamentalnode start, the output is still

fundamentalnode started succesfully

We should change that to something like

fundamentalnode already started

[SkyHyperV]

There may be a way to resolve this and I'll look at implementing. However, the cold wallet isn't aware necessarily that the command was run successfully against the FN. In cases when you are running FN on the same wallet then, maybe, but in the recommended cold wallet setup, it may not be easily tracked. But again, I'll dig into this even though this is a trivial bug and does not impact FN functionality -- just the user experience.

[joshafest]

ok