Another issue from old beta-tester mail: #annotate and #overview were
missing from the list of extended commands. M-A and M-O were listed
but marked "(if supported)" even though they've become unconditional.
Same for M-R, although in its case #ride wasn't missing.
Some old beta-tester mail suggested mentioning the implicit_uncursed
option in the "Curses and Blessings" section; this patch does that.
It also mentions that option in the "Configuring Menu Colors" section
since anyone trying to specify a color for " uncursed " will want
objects to be explicitly described as "uncursed".
The changes to the LaTeX version haven't been tested. The generated
plain text version has a lot of spurious changes due to the padding
method it uses to right-justify short lines.
mention msg_window in the Guidebook and long online help. I didn't update
hh since that only has one-liners. Also made the msg_window default clear
in the Guidebook and opthelp. Plus, an update to Guidebook.txt in hopes
that it won't need another before release.
