Tutorial scenery

See merge request !1722

Fix #805

Closes #805

See merge request !1757

Spawn MT_RAY when attempting to spawn MT_NULL

Closes #801 and #800

See merge request !1751

2022

See merge request !1754

Fix warning when compiling with NONET=1

See merge request !1753

Fix perfstats failing to compile with NOHW=1

See merge request !1728

Turn the console warning into a devmode print because turns out it happens more often than I thought

Some code assumes that P_SpawnMobj can never return NULL
So spawn MT_RAY in it's place when attempting to spawn MT_NULL and show a console warning

Move MT_RAY to the very end of the mobj list

See merge request STJr/SRB2!1747

Convert old frame flags in Metal recordings to their 2.2.10 equivalents

Closes #775

See merge request !1742

This reverts commit b2d693a5.

Fix blendmode V_ flags not working at full opacity in Software

See merge request !1717

Remove MT_NULL hacks

Closes #721

See merge request !1729

Increase Eggman's hitboxes

See merge request STJr/SRB2!1706

Improve bots (resolves #710)

Closes #710

See merge request STJr/SRB2!1679

Fix portals

See merge request !1724

Fix #732

Closes #732

See merge request !1739

Allow people to update their Master Server listing on command.

See merge request !1518

Disable SDL error message on dedicated servers

See merge request STJr/SRB2!1735

Fix crosshairs not displaying

See merge request STJr/SRB2!1716

Fix lock-on crash (Resolves #746)

Closes #746

See merge request STJr/SRB2!1704

Fix software splats breaking and crashing in skyboxes

See merge request STJr/SRB2!1711

Fix software splats not being clipped by ceiling walls

See merge request STJr/SRB2!1712

Hack that fixes software drop shadow crashes (Fixes #159)

Closes #159

See merge request !1700

Add missing optimization to software npo2 sloped floor sprites

See merge request !1713

Fix issues with chat messages

Closes #583

See merge request !1698

Do not attempt to disconnect when a packet checksum is invalid

See merge request !1699

UDMF: Fix offset calculation for segs that represent linedef backsides

See merge request !1701

Only load map lumps that are WADs or have no extension

See merge request STJr/SRB2!1715

So they don't mess with shell scripts that expect SRB2 to exit when it crashes (like most other programs)