Download files if they are found with wrong checksum

See merge request KartKrew/Kart-Public!238

Mute music instead of pausing if lose focus

See merge request !235

Command for http downloads with basic auth

See merge request !233

Fix servers having a long delay before starting

See merge request !236

Implement STUN for fetching your public IP address for RPC

See merge request !237

It gets pushed forward for ASKINFO.

unsigned int is always 4 bytes on windows btw, so this should align properly.

RFC 5389 is a standard protocol that can be used for this instead of ip4.me.

I may have gone overboard on the CSPRNG... It was fun though.

Open lua files in srb2home

See merge request !234

Fix engine sound volume

See merge request !231

Link with exchndl, instead of dynamically loading it.

See merge request !230

Kill some nonsense

See merge request KartKrew/Kart-Public!232

Fix engine sounds' dampening to a sane value, now that the bug preventing it from working properly was fixed.

You can hear engines in 16P again, but it's not as obnoxiously loud as it was before. Additionally, I commented this function better.

It caused problems with crash reports not being made if the current working directory gets changed. Not even recommended anymore per the drmingw readme
https://github.com/jrfonseca/drmingw#exchndl

Disable Discord Rich Presence on dedicated servers

See merge request !229

Move master server presence updates to Advertise_OnChange

See merge request !227

Make "divide by zero" or "modulo by zero" errors show the file and line of where it happened

See merge request !228

Shouldn't break scripts as it stops execution as soon it happens, like it already does.

This will probably call DRPC_UpdatePresence slightly less?

Rename the "small" variable to "isSmall"

See merge request KartKrew/Kart-Public!226

Reported by MK, apparently "small" is considered a data type for some systems. After a little bit of research, apparently it can happen when including <windows.h>... whatever, just rename the variable :p

(cherry picked from commit 6f51c68c7248d616ad16f66b72cfcc36b7c952f5)

This should work for mingw and linux so far.

(cherry picked from commit f92026f98b168f4556d50d3dde403ab6bfd97ff3)

(cherry picked from commit 9495e6354fed1028c6fc502cc9d946cfdd0b7896)

(cherry picked from commit ef2bff6383b16385f9874e1c9c6b66c9df794f5b)

(cherry picked from commit 4059c6a654a5785199cf0d6dd998bf113b57cd0f)

(cherry picked from commit 00943e9e82ff46a97a2bc1e3179ce47e53345cc3)

(cherry picked from commit 4e1d54c3322c17276e532ab4d9e875a8c8ebc399)

(cherry picked from commit 193c45aa2f555b56f548f70e7fa0d74a1ce4e412)