Fix Dragonbomber z positioning

See merge request STJr/SRB2!1004

Tweak display of hidden items in "1 Player" menu

See merge request STJr/SRB2!1013

FF_HORIZONTALFLIP and mobj->mirrored (sprite enhancements)

See merge request STJr/SRB2!987

Add support for saving/loading per-skin NiGHTS replays

See merge request STJr/SRB2!1025

Cheese

See merge request STJr/SRB2!1028

More credits changes

See merge request STJr/SRB2!1027

Fix crash when a polyobject rotates a non-player mobj

See merge request STJr/SRB2!1026

Special saves! (Resolves #162)

Closes #162

See merge request STJr/SRB2!1016

ACTUALLY fix #172

Closes #172

See merge request STJr/SRB2!1020

Delete connection screen and midgame joins

See merge request STJr/SRB2!1021

Increase the length of the player input buffer even more

See merge request STJr/SRB2!951

Expose "server" and "dedicated" to Lua scripts

See merge request STJr/SRB2!1022

Careful! Both are local variables and are always false for clients,
and therefore should obviously not be used in anything gamelogic-related.

It got removed by 864e7033 but he forget how it
was before the hook was there. :(

GameQuit Hook

See merge request STJr/SRB2!847

# Conflicts:
#	src/g_game.c

Faster OGL sprite sorting algorithm

See merge request STJr/SRB2!1008

Gametype fixes

See merge request STJr/SRB2!816

ACZ3 softlock fix

See merge request STJr/SRB2!1015

Don't repeatedly look for model texture files

See merge request STJr/SRB2!1009

Fix the Eggman signpost's background color

See merge request STJr/SRB2!1007

Faster and more correct OGL transparent surface sorting

See merge request STJr/SRB2!1005

GME cleanup and fixes

See merge request STJr/SRB2!1001

Fix missing bruh string in Lua side string options.

See merge request STJr/SRB2!1017