What changed in EDuke32, build by build

fix M32_PRINTERROR macro

fix updatesector/updatesectorz/updatesectorneighbor/updatesectorneighborz

add map start position to undo/redo state

fix F11 brightness adjustment and enable function in 2D mode

improve 2d mode sprite color calculation to avoid returning illegible colors

set asksave to 0 when saving from menu

add Ctrl+Alt+W hotkey to toggle clipping of sprite insertions against blocking sprite geometry instead of hitscan

fix m32script crash

add file drop callback/SDL_DROPFILE support

add an EVENT_INIT that fires once per explicit `include` of a script filename from the console (including from within m32_autoexec.cfg)