Core/Player: Fix Restes/RaF exp on the exp bar and from kills.

Fixes a problem where when you kill a creature it will say you got RaF exp but you just got either rested or normal.

Also fixes a graphic bug where you never see your rested exp when you link with another player.
@DDuarte: You're right, I had not taken into consideration :stuck_out_tongue_closed_eyes: 
@Ascathor: Yes, that sounds more.