Expose PF_SHIELDDOWN to Lua

See merge request STJr/SRB2!2299

Missiles fired by player will not hit bots

See merge request STJr/SRB2!2316

Prevent bots from taking slot 0 with lua. (electric boogaloo)

See merge request STJr/SRB2!2482

Shield Button Prompt for Old Configs

Closes #1152

See merge request STJr/SRB2!2387

Use palette index 255 for transparency

Closes #1259

See merge request STJr/SRB2!2471

Fix #1241

Closes #1241

See merge request STJr/SRB2!2481

Fix #1261

Closes #1261

See merge request STJr/SRB2!2479

Fix segfault when setting forceskin to None

See merge request STJr/SRB2!2478

Don't adjust texture coords of nonexistent gpatch (resolves #1242)

Closes #1242

See merge request STJr/SRB2!2469

Fix #1263

Closes #1263

See merge request STJr/SRB2!2472

Implement support for ZDoom GL2 nodes

See merge request STJr/SRB2!2474

Do not access memory on misaligned addresses

See merge request STJr/SRB2!2438

Fix code that generates warnings under Clang

See merge request STJr/SRB2!2477

Resolve #1256

Closes #1256

See merge request STJr/SRB2!2475

Fix spectator list not compensating for non-green resolutions

See merge request STJr/SRB2!2393

Fix #1153 and #1198

Closes #1198 and #1153

See merge request STJr/SRB2!2476

Fixed code that generated the following warnings under Clang:
-Wdeprecated-non-prototype
-Wsingle-bit-bitfield-constant-conversion warnings

Raise TEXTMAP parser limits

See merge request STJr/SRB2!2473

Don't traverse the entire HOME directory to find wads

See merge request STJr/SRB2!2396

Fix buffer overflow when loading addons through symlinks

See merge request STJr/SRB2!2402

Fix buffer overflow when setting NETVAR string console variable and ensure servername is within MAXSERVERNAME

See merge request STJr/SRB2!2445

This commit adds a verification before setting the servername console
variable. We now check that it fits within the MAXSERVERNAME length and
we cancel setting it if it doesn't.
Letting the servername be more than MAXSERVERNAME could lead to crashes
when trying to edit the server name from the menu so, we now avoid
those.

Fix segfault when trying to spawn an MT_PLAYER from Lua

See merge request STJr/SRB2!2276

Fix shieldscale 0 bugs

See merge request STJr/SRB2!2425

Avoid updating IPv4 MS entry if it failed to register

See merge request STJr/SRB2!2462

Fix object collision with solid noskew midtextures (resolves #523)

Closes #523

See merge request STJr/SRB2!2447