Various fixes and updates

Make lines beginning (in markdown files) 'BTW' bold. Rebuilt the
respective html pages.

Slight update to abstract in two entries (1985/shapiro and
1994/shapiro). One is changing 'defines' to '#defines' and the other was
a typo fix.

Fixed make gen_next: added missing new files.

Various fixes in next/register.html (typos and other things).

1991/ant/README.md

@@ -67,7 +67,7 @@ input keys described above. See the author's remarks for the remaining commands.
 The author was kind enough to supply a list of references below,
 in case you are still confused after read the source!  :-)
 
-BTW: you've most likely heard the joke that if you want a pseudo-random string
+**BTW**: you've most likely heard the joke that if you want a pseudo-random string
 of characters you can put a user unfamiliar with vi(m) in a vi(m) session (in
 insert mode) and ask them to exit. Well in this case you're likely to have this
 problem if you ARE a vi(m) user! :-) ... especially if you don't read the

1991/ant/index.html

@@ -479,7 +479,7 @@ input keys described above. See the author’s remarks for the remaining command
 <h2 id="judges-remarks">Judges’ remarks:</h2>
 <p>The author was kind enough to supply a list of references below,
 in case you are still confused after read the source! :-)</p>
-<p>BTW: you’ve most likely heard the joke that if you want a pseudo-random string
+<p><strong>BTW</strong>: you’ve most likely heard the joke that if you want a pseudo-random string
 of characters you can put a user unfamiliar with vi(m) in a vi(m) session (in
 insert mode) and ask them to exit. Well in this case you’re likely to have this
 problem if you ARE a vi(m) user! :-) … especially if you don’t read the