FHU? What is that? o.O Is that like a new launcher? And what drama..sheesh must of been alot of people involved in this. Oh well..let's grab the little people that we have and cuddle up in grounds xD
FHU stands for FeralHeart Unleashed, which is, basically, a new FH server created by xSpirit and officially given permission by KovuLKD himself. xSpirit was an ex-programmer for this version of FH, but left due to creative differences.
He then managed to get into contact with LKD, who sent him the Full FH 1.13 source code, as well as the source for the FB game, Feral Tales, which is 100% proof that it's the real Kov.
So, basically, FHU is another official FeralHeart server supported by Kovu, run by xSpirit separately from this version of FH. FHU is being given new features and updates that this version of FH is unable to implement(because Raz.)
I'd link it, but FHU's link is censored here apparently, for some reason- but you can find it easily by searching it.