This should be the last of the symlinks.
do*day,hell,nite patches were just symlinked to the appropriate sky patches, so I just copied the sky patches.
donhell.gif -> sky3.gif
donhell.gif -> sky3.gif
donnite.gif -> sky4a.gif
donday.gif -> rsky1.gif
doenite.gif -> sky4a.gif
dosday.gif -> rsky1.gif
dowday.gif -> rsky1.gif
doshell.gif -> sky3.gif
downite.gif -> sky4a.gif
dosnite.gif -> sky4b.gif
doeday.gif -> rsky1.gif
dowhell.gif -> sky3.gif
doehell.gif -> sky3.gif
Add FALL3 texture definition needed for TNT compatibility, and add
extra texture definitions so that all the patches required for TNT
compatibility are included in the PNAMES list (and IWAD). Add
symlinks for TNT sky patches that just point to sky patches that we
already have. Fixes#43.