This allows people to watch replays without the characters loaded,
without making everyone be Sonic.

Allow connecting to localhost / 127.0.0.1

See merge request STJr/SRB2!474

Because IPv6 doesn't seem to work anyway.

-noxinput and -nohidapi command line parameters.

See merge request STJr/SRB2!468

Error if the lump is a PNG lump

See merge request STJr/SRB2!466

This makes for smaller replay files while keeping
sync checks in place!

This caused a lot of """desyncs""" when players were moving
between 128-255 FU/T, which was exacerbated by this next commit...

Begins the process of namespacing demo recording commands.

This patches over a few trouble spots, like Misty Maze, causing
consistent resyncs and screwing up playback.

# Conflicts:
#	src/doomdef.h
#	src/g_game.c
#	src/p_user.c

This reverts commit d03c5393.

Notably over chat.