Forum adjustments

[Azarael]

I've moved the boards around a bit to compact the layout. I've also removed the superfluous "Requests and Feedback" fora for each server - post anything server-related in the main boards for each server.

There's a "General Discussion" for anything LDG-related now, so don't use Server #1's board unless the issue is actually specific to Server #1. Networking issues likely to affect all servers should be posted in the Help board.