boxface/bounty: Put price on a player's head and get a reward when capturing bones.

boxface 337d7ce6e5 first commit		%!s(int64=2) %!d(string=hai) anos
..
bounty_mark.png	337d7ce6e5 first commit	%!s(int64=2) %!d(string=hai) anos
bounty_reward.png	337d7ce6e5 first commit	%!s(int64=2) %!d(string=hai) anos