player->rings appears to be used for ring/star pickups. Player never loses stars, so it seems player->rings should not be deducted in-level.

Therefore, just deduct player->spheres.

(or, in other words, fixing this to be the same as the equivalent state in the original SOC)

# Conflicts:
#	src/hardware/hw_md2.c

GME low volume fix

See merge request STJr/SRB2!248

Fix pausing on gme

See merge request !251

OpenGL: FOF walls + Lower unpegged

See merge request !258

OpenGL HWR_ProjectSprite fix

See merge request !255

More helpful error messages

See merge request STJr/SRB2!243

Smoother MD2 interpolation

See merge request STJr/SRB2!224

Fixed MD2 models not loading correctly on Linux

Lua exploit fix

See merge request STJr/SRB2!259

Disable admin password by default

Minor net command fixes

fix compiler errors (shadowed vars, comparisons between unsigned + signed, an unused function arg, and a non-static function with no prototype)