[Client][Feature Request] Hold a list of remembered server addresses

[rheimus]

Client Request:

Probably would be useful to have the client remember recently used server addresses.

To go along with this the server could transfer its configured name from server.properties.

This list would also be helpful if it did a test ping to see if the server is online / has updates (getting dangerously close to a server browser GUI here 😆 )

[rheimus]

Relates to #201