Cosa è cambiato in EDuke32, build per build

Fix warning: array subscript is above array bounds [-Warray-bounds]

Fix warning: variable may be used uninitialized in this function [-Wmaybe-uninitialized]

Fix warning: type does not match original declaration [enabled by default]

Replace calls to Error() with buildprintf().

Update MFILE to use the same calls KenBuild uses to save.

Since sprite->filler is now fogpal, modify the CTF code that uses it to use a new variable in SW's USER struct instead.

Modify the border-drawing code to work with our widescreen code.

automapping (deleted), visibility --> g_visibility, numpalookups --> numshades

Update some API calls.

Misc adjustments.