No possibility to quit JEasyCryptoServer from console

[jennitormala]

It would be more convenient to be able to quit the server application via the console, just like you can with the client application.

[anttijuu]

For reference if anyone wants to take this issue (@jennitormala?), you may want to see my Keywords system and the server there. The server there runs the actual networking code in a secondary thread, while the main thread is just waiting for the user to enter the quit command. For server code, see here.