UltraRogue: fix a segfault related to restoring monsters. The functions for restoring saved games failed to properly correct the t_chasee pointer of monsters chasing the player. Such monsters would attempt to chase NULL instead, with predictable results.

[Desktop Entry]
Encoding=UTF-8
Name=Rogue
GenericName=Rogue
Comment=The original curses-based adventure game
Exec=rogue
Icon=rogue.png
Terminal=true
Type=Application
Categories=Game;RolePlaying;
Version=1.0