Also removed the + 1 from newtime, since there was never really any need for it. It just offset the interpolation so it went like (1 -> 2] instead of [1 -> 2), so you never saw the base appearance for each frame except at the end of any frames interpolating to it

Changed DrawMD2Ex's duration/tics type to INT32 so -1 comparisons work, probably want to change the signs elsewhere too but this is fine for now

Makefile ports tweaks cleanup etc

See merge request !211

Fix save games for a custom mod not saving to custom home folder

See merge request !209

Doing this way because I have no idea if the GP2X port was SUPPOSED to use SDL or not in the first place

Removed all support for Dreamcast, XBox, PSP, PS3, GP2X, Wii, and WinCE from files in the sdl/ folder. If you wanted these ports, use the SDL 1.2 code in sdl12

Also removed GP2X setup from sdl/MakeNIX.cfg, use sdl12 for that too