Reimplement the server gui

- AresServer now contain infromations about a server
- AresData.mapData is now a AresServer array called serverInformation
- made gui working with new AresServer
- gui now shows the next map
- readd the Project Ares button (now Overcast Network)
- redirection when joining over the button
- fixed #32 (doesn't happen, don't know why)
- fixed #37 (only sort button missing)
- closes #41 (yes)
--> still missing: sort button
--> maybe add a lobby button because the lobby doesn't show up in the
list