Forums rearranged and simplified

[endrift]

In the interest of simplifying the forums, several changes have been made:

• General and Support have been merged together. The difference between the two boards was always a bit poorly defined, so there's only one board for them now.
  
• The two gaming boards were merged and put into off topic. They didn't see any traffic, anyway.
  
• A new development section was added, by request. This is primarily for developers talking about potential changes, or discussing changes that are made, not for the average user.
  

Hopefully this will make browsing the forums less confusing now!