Noticed while working on Qt's extended command handling, there
are an awful lot of "seeXYZ" commands. Keep the inventory display
ones (named versions of ')' to show wielded weapon(s), '[' for
worn armor, '"' for worn amulet, &c) and rename the others:
| #seenv -> #wizseenv debugging command
| #seespells -> #showspells '+' command
| #seetrap -> #showtrap '^' command
Also, expand the descriptions of #shell and #suspend a bit in
the Guidebook. LaTeX version is untested.