Minus One Frames

See merge request STJr/SRB2Internal!593

Fix FreeMipmapColormap yet again

See merge request STJr/SRB2Internal!597

Time Over rings (resolves #446).

Closes #446

See merge request STJr/SRB2Internal!596

Fix slope launch with NULL player causing SIGSEGV.

See merge request STJr/SRB2Internal!595

Fix tokens not spawning in ultimate mode

See merge request STJr/SRB2Internal!594

Credits update

See merge request STJr/SRB2Internal!484

NO_PNG_LUMPS compile fix

See merge request STJr/SRB2Internal!598

sfx_spsmsh (hhz spikeball) is now singular

Closes #451

See merge request STJr/SRB2Internal!599

Make rings 0 in competition winner selection if you gamed or timed over, and use the MAXSCORE macro instead of a hardcoded value.

Temporary fix for the fade timeout

See merge request STJr/SRB2Internal!592

Spawn tokens in ultimate mode now they no longer give you rings on successful special stage completion.

Semi-hacky fix to R_AddSpriteDefs printing `Added -1 frames in 0 sprites`: if the start marker is equal to or beyond the end marker, none of r_things' `for (l = startlump; l < endlump; l++)` loops will run, so just assume no sprites.

Simply put, `W_CheckNumForFolderStartPK3` and its `End` equivalent will never return INT16_MAX for nonexistence, and I don't want to break any assumptions elsewhere by modifying those functions directly, so this is the simplest possible fix.

New credits art + credits header support

See merge request STJr/SRB2Internal!591

Attempt to detect Tailsbot and Sonic spawning on top of each other

See merge request STJr/SRB2Internal!584

Savedata load order of operations change

See merge request STJr/SRB2Internal!583

Allow re-grabbing Tails AI mid-flight (resolves #428)

Closes #428

See merge request STJr/SRB2Internal!590

Nail a likely culprit in papersprite rendering resolving #427 and #375.

Closes #427 and #375

See merge request STJr/SRB2Internal!589

Fix emerald coordinate overflow in failed SS tally (resolves #421).

Closes #421

See merge request STJr/SRB2Internal!586

Ideyagun (resolves #406).

Closes #406

See merge request STJr/SRB2Internal!582

- Update x coordinates for credits_pics entries
- Reorder credits_pics entries (what even was the previous order lol)
- Add zig zag graphics to credits roll
- Attempt to scale the y positions of credits graphics with the length of the credits roll
- New escape character for credits entries: \2, which centers the text and makes it yellow
- Add support for colored text to V_DrawStringAtFixed

Boss Scream fix

See merge request STJr/SRB2Internal!581

Fix intro's BRITEGG/DARKEGG scale

See merge request STJr/SRB2Internal!580