Updated some variable names for Batter Up and Wibbly Wobbly Timey Wimey to be more ULX friendly

Changed event 'Can't Stop Won't Stop' - Instead of applying the movement command constantly, now encourages players to keep moving by setting them on fire whenever they're standing still. Also added event 'The Floor is Lava!' - Any players standing on the world itself are set on fire, but this can be prevented by standing on props.

Added event 'Live Check!' - Every 20 seconds, all players are told how many people are still alive in the current round

Changed event 'No Fall Damage' - Now called 'Into the Spiderverse', all players are given immunity to fall damage and a grapplehook. This is also a fix, because I think the way it was doing fall immunity originally wasn't actually working

Added event 'Did you bring enough for the whole class?' - Whenever someone buys a non-passive item from the shop, everyone else gets a copy too!

Added 'Wibbly Wobbly Timey Wimey' event - Every 10 seconds, the gravity randomly switches between low/normal/high and the speed randomly switches between slow/normal/fast.

Added 'Aperture Science!' event - All players get a portal gun!

Decided to change the '(player) is acting suspicious' event so that the player becomes either a Traitor or Spy (instead of Jester). I just think Spy is a little more engaging than Jester and less terrible to suddenly become

Fixed 'UNLIMITED POWEEERRRRRR!' event - It was working, but it spawned around 750 errors whenever someone got stunned. Fixed the thing that was doing that

Added 'UNLIMITED POWEEERRRRRR!' event - All players receive a stungun with infinite ammo