Fix a dedicated crash in Special Stage intermissions (2.2.9 RC1)

See merge request !1475

Spritedef add hotfix

See merge request !1476

Possible netgame quit crash hotfix

Closes #487

See merge request !1477

Set "allocated" flag to off if setting a string from PossibleValue afterwards, or if not setting a new value at all.

Fix uninitialized reads in PreparePolygon

See merge request STJr/SRB2!1392

Render midtextures on two-sided lines with a z-buffer offset

See merge request !1376

Remove bad pointer arithmetic in polygon comparators (fixes #295)

Closes #295

See merge request !1462

Fix incorrect values caused by outdated use of timing functions in perfstats 3

See merge request !1460

Cache teamflags/icons before drawing if they don't exist yet (closes #511)

Closes #511

See merge request !1459

Fix blend tables generation

See merge request !1458

Fix HWR_DrawSprite sigsegv

See merge request !1454

Blending changes

See merge request !1446

Fix CTF flag patch garbage (resolves #506)

Closes #506

See merge request !1453

Fix dedicated server crashing when exiting special stage (Fixes #453)

Closes #453

See merge request !1451

Fix a OpenGL backend DeleteTexture crash (Fixes #499)

Closes #499

See merge request !1448

BRUH MOMENT

Fix jet fume crash when dashmode is above DASHMODE_MAX

See merge request !1450

I would like to use higher dashmode values for extra leniency, the jet fume kicks and screams when this happens.

Let uppercase letters thru dedicated console

See merge request !1449

don't HWR_ClearAllTextures() in software (fixes #389)

Closes #389

See merge request !1440