Simpler control panel layout for game servers

[Edge100x]

To simplify the potentially overwhelming options in our game server control panel, we've now separated the links for each server into "Basic options" and "More options" categories. The "basic" pages are the most often-used ones that we expect renters to need immediately after a server is created; the "more" pages are ones that give even more information and control but don't as frequently come up.