Fixed error when the ability panel closes during a button update tick

Changed cannibals to roam when they finish killing the only target they can find

Added ability to put the Dread Thrall on the monster team

Changed glitches to be targeted last by cannibals
Changed cannibals to spawn facing their target so there is less chance they just sit there doing nothing

Removed debug print

Fixed bodysnatcher not getting the dread thrall bone charm when they snatch the role
Added message about pressing the reload key to access abilities to the tutorial

Removed ability cost from role popup since it's on the powers window anyway

Added ability to configure the number of credits each ability costs
Fixed blizzard not ending when the round finished or was restarted

Changed bone charm weapon to be a different KIND to conflict with less shop weapons

Fixed cannibal highlights being visible to everyone instead of just traitors