Put McMMOPlayer to use where it made sense
It's basically a wrapper for anything related to players, as a
consequence Users.getProfile() is now depreciated.
Also removed SkillTools.xpProcessing() because of some redundancy with
McMMOPlayer.addXp().
+ some cleanup for consistency sake.
Forgot to use the ShareHandler enum here
Removed some deprec(i)ated calls to Users.getProfile()
Fixed /addlevels not working on offline players
Also removed use of Users.getProfile()