Don't show gametype was changed message if the same gametype

See merge request KartKrew/Kart!1686

Set default scale for wallspikes

See merge request KartKrew/Kart!1687

Revert change to gamemap default value

Closes #792 and #788

See merge request KartKrew/Kart!1685

- Some code assumes mapheaderinfo[gamemap-1] is valid
  before gamemap is set

blame 5d0c0627

Fix Sealed Star / Tutorial music overriding other levels

Closes #791

See merge request KartKrew/Kart!1683

Hardcode Angel Island and Endless Mine

See merge request KartKrew/Kart!1680

- Note: rain does not use the weather system

Hardcode Carnival Night balloon edits (also seen in Joypolis)

See merge request KartKrew/Kart!1682

Hardcode Lost Colony Fuel Canisters

See merge request KartKrew/Kart!1681

Do not reset music in Sealed Stars and Tutorials

See merge request KartKrew/Kart!1676

Pause menu: changing gametype goes to vote screen

See merge request KartKrew/Kart!1679

S_ShowMusicCredit: subtract indentation amount from available screen space

Closes #775

See merge request KartKrew/Kart!1675

Winning player vanishes when crossing finish line in Sealed Stars

See merge request KartKrew/Kart!1677

Lightning/Bubble/Flame Shield: add MF_NOCLIPHEIGHT

Closes #777

See merge request KartKrew/Kart!1674

Do not let Super Flicky target spectators

Closes #785

See merge request KartKrew/Kart!1672

Fix Battle UFO desync if midgame joins + UFO bobbing speed fix

Closes #783

See merge request KartKrew/Kart!1671

Fix zero lump sfx

Closes #789

See merge request KartKrew/Kart!1678

Don't do scale-to-scale collision checks vs static hazards (resolves #491, #781)

Closes #781 and #491

See merge request KartKrew/Kart!1665

Trick prisons

Closes #784

See merge request KartKrew/Kart!1673

- If you change it during the vote screen, voting
  restarts.