What changed in EDuke32, build by build

Avoid calling dragpoint on invalid wall indexes in SE 20 code

Fix renderer menu option hiding logic

Fix sloped sprite shading preview in editor

Fix sloped sprites to once again take on ceiling/floor shade

Clean up voxflags[] a little bit

Fix voxel visibility rolloff in classic mode to match sprites

Add to 33bac7ce741da0d058b31465e86af37ed862679d

Fix logic oversights in 6e6b82d4cc9a0434d1ff7a122ae267c3b0e7b21e

Use a tspr->clipdist bit to specify legacy voxels instead of tspr->cstat 48

Factor out tspr->clipdist accesses into local variable tsprflags

Factor out rendering tests for whether a sprite is a voxel

Ensure some hardcoded switch behavior maintains applicability only to wall sprites, not sloped (floor), consistent with the rest of the code

Enumify uses of CSTAT_SPRITE_ALIGNMENT (cosmetic cleanup)

Don't call pushmove from DamageObject if sprite has invalid sectnum

Fix OOB access

Return from mi_log if msg is null or contains only a newline

Add buildgl_uLookAt to glbuild.h

Add USE_OPENGL guard around fullscreen_tint_gl() declaration