Adds some extended customization options.
Doing Scenario -> Sandbox comes up with this error:
Error while running event wormmus-config::on_player_created (ID 24) No character. stack traceback: wormmus-config/control.lua:13: in function <wormmus-config/control.lua:3>
Ahh, I didn't throw in the checks. I will have a fix in the next update. My apologies.
Update: 3.1.3 has the fix and has been released.
