Ultra-Snowfall

Fixed multiple players being able to stand on a same block, stops games ending with many people standing on the same block forcing people to jump in on their turn.
Fixed sign wall not updating once a game started.
Added amount of played games and wins to /sf stats.
Added new arena option - potions. Automatically gives players specified potion effects.
Added snowmen automatically dying, and don't drop any snow.
Added new language - Norwegian.
Added configurable option to enable/disable timers shown on xp bars. Does not affect timer messages in chat.
Added configurable option to disable all commands (except /sf) while playing or spectating to prevent cheating.
Added update notifications (also configurable) when a new version of Snowfall is available. Message is sent to an OP when they join the server.

No bugs we're aware of.