Topic attr

Okay, this is one of those more or less crazy commits I do every once in a while.
I'm not sure everything I does make sense, though I removed some 29 queries and I think this is a Good Thing<sup>TM</sup> regardless. :smile_cat: 

I also think the Topic.subs.php should be split... now is **huge** (3247 lines of code :cold_sweat: )