stopServer
Attempts to stop the server if it is running
If the server is running it will be stopped. If the server is not running, or does not exist, nothing will happen.
Return
Result of success if the server stopped, else an error
Attempts to stop the server if it is running
If the server is running it will be stopped. If the server is not running, or does not exist, nothing will happen.
Result of success if the server stopped, else an error