No longer using byte2float in DrawPolygon -- use the surface color data directly
Vertex Buffer Objects for non-interpolated model frames
Removed some old unused paletted texture stuff
(Huge change: NO_MIDI is now a define, simply because that makes it easier for me to resolve merge conflicts if I can see the original code and the new code. Also means that people who REALLY miss MIDI can compile & fix it themselves :P)
* gr_md2 on the menu.
* Disable interpolerated model option completely for now.
Also, tweaked the GL menus a bit to suck less, since I was ferreting around in that area.
* Revamp the saycmd colour list to take advantage of them. Peach and Purple are used the least...
* In all of the string drawers, replace colormap only when charflags changes.
* Add V_SKYMAP to dehacked.c alongside the above (oversight from when I added it yonks ago...)
* Make the I_Errors in filesrch.c more descriptive.
* Fix up the loading of sounds.kart such that it has SOME protection against being loaded with game-modifying lumps.
* SERIOUSLY fix up the MD5/mainwads++ section in D_SRB2Main, since 1) I broke it and 2) it was already a little broken in the first place but we just didn't notice it because #ifndef DEVELOP.
* V_DrawFixedPatch and ilk:
* Change the offset of V_FLIP so it's not one screen-pixel off where its non-flipped sprite would have started being drawn from.
* Write to x and y as well as desttop so that anti-screen-overflow checks later in the function behave properly with non-green resolutions.
* V_DrawFill:
* Reduce number of operations performed upon `c`.
* V_DrawString and ilk:
* Offset the left and right boundary checks in non-green resolutions such that you can actually draw stuff to the left of basevid screen x coordinate 0.
* A better representation of an Encore level, now with inverted graphics (a special remapping we can now use elsewhere whenever if we want!) and a floating Ruby!
* Decouple encore's setting from cv_kartencore on mapload. Instead, bake it into D_MapChange and related, which will only some of the time be fed by cv_kartencore's value.
* Encore mode now has a special mapheader palette setting, "encorepal", rather than using the same one as non-encore.
