Forum upgraded to phpBB 3.0.0

[Jazzy]

Yesterday, I added topic titles on the index, and today I've put the quick reply mod back on. The only remaining mod I can think of is the chatroom one, which is still in beta; I'll be adding it when it comes out, but for now, these are all the changes I'm going to make. Let me know if anything's behaving strangely, or displaying oddly.