UltraRogue: prevent bad array accesses in call(). Marking non-magic items caused segfaults because item_color was set to NULL. item_type could also be used as an out-of-bounds index. These problems have been fixed by only using these variables when the mark argument is false, in which case they are properly initialized. A fall-through case statement was also fixed.

182e26224f92e874cbcf17d96fe2f5cee8bda7d7 rel2016.06