New sheep models and animations

This is something I've been putting of for a while. Re-doing the sheep model to use the one that appears in the logo for the game. The new sheep look better, but I wasn't looking forward to redoing the animations. I'd been trying and failing to remap animations from other sheep onto mine. That process beat me. 

So today I sat down and redid the walking and running animations by hand. I'm fairly happy with the end result. 

With the new sheep model, I've also updated it so the PvP levels with specific sheep for the players now have white sheep with numbers on their backs.