The idea is for the layman Lua user to understand better what range of values to use for mobj types, states, sfxs, player #s etc. Additionally, mobjinfo/states/sfxinfo/hudinfo tables all now have actual bound checks when accessing/editing them. Yikes, why didn't they have any before?!

Should fix conflicts with Lua-scripted jump spin abilities.

For some reason every texture and flat loaded into GL is vertically flipped

Fixes http://mb.srb2.org/showthread.php?t=41403. Not sure why nobody noticed this earlier.

Don't think either of them need RGBA

So they don't get effected by the texture format set by the screen depth
GL_RGB5_A1 from 16-bit was removing all alpha from the texture

apparently it was never used for what exists of floor splats' code, huh

This fixes the rendering glitches encountered around slopes in Glacier Gear, yes. :)

This fixes a quirk with Shadow with chaos control sometimes throwing the player in the wrong direction

Fix how FF_CUTEXTRA FOFs carry over cutting ability to FOFs below them in the same sector, even if they shouldn't do that

Always wondered why a flag meant for FOF physics was used in the rendering code, lol

* add skidtime, which we forgot before 2.1 release apparently
* change tics from INT16 to INT32
* change eflags from UINT8 to UINT16
* change actionspd/mindash/maxdash from INT32 to fixed_t

Splitscreen fix: half of GFZ1's invinc monitor should no longer appear above the bridge for player 2

I don't know if there's any other vid.height/viewheight confusion like this around, but that was the cause apparently

initialize flipcam2
player 2 gets game over music now.
restore the other player's music when the dead player is done sulking about their game over

Fixed mashing buttons during fades causing crashes,
messed up behavior, record attack anywhere,
all the damn stupid bugs that it caused, basically

Until we use something besides Native MIDI to play
back MIDI music, MIDI volume changing is disabled
since it causes way too much of a damn headache.
(It's not even our fault, it's fucking MS.)

Apparently bosses and players used to use options >> 5 instead of 4 for z heights, or so it seems

Fixed an off-by-one array error in the process