Add deobfuscated versions of 199[1-3]/ant

Anthony/@SirWumpus kindly provided these files. The source code and
their Makefiles are in a deobfuscated/ subdirectory (for each of the
three entries) but running make alt
from the entry directory works. It uses the deobfuscated version's
Makefile but copies the compiled binary to the entry's directory to keep
things clean (deobfuscated code separate from the entry) to simplify
using the deobfuscated versions.

Entries that had a test suite Makefile have a new one for the
deobfuscated code and a try.alt.sh script was added to 1992/ant and
1993/ant but the entry_text is a bit different than the usual to
indicate that it's the deobfuscated version.

It might be that the way this is done should be reorganised some but
that can be decided on later.

The entries from 2004 and 2005 have not yet been added because some
decisions have to be made as those are the ones with a configure script.

The manifest was updated and the .entry.json and index.html files were
updated. It is not clear yet if the inventory_order is right but that
will be looked at in the next day or two.

Thank you Anthony!

1991/ant/index.html

@@ -403,8 +403,9 @@ Location: <a href="../../location.html#CA">CA</a> - <em>Canada</em></li>
 <!-- BEFORE: 1st line of markdown file: 1991/ant/README.md -->
 <h2 id="to-build">To build:</h2>
 <pre><code>    make all</code></pre>
-<p>There is an <a href="#alternate-code">alternate version</a> that might feel a bit more
-familiar to vi(m) users.</p>
+<p>There is an alternate version that might feel a bit more familiar to vi(m)
+users. Additionally, the author provided deobfuscated versions including one for
+C89. See <a href="#alternate-code">Alternate code</a> below.</p>
 <h2 id="to-use">To use:</h2>
 <pre><code>    ./ant some_file</code></pre>
 <p>NOTE: the file must already exist and not specifying any arg will make the
@@ -415,19 +416,28 @@ program exit without doing anything.</p>
 <pre><code>    make mole
     ./ant mole</code></pre>
 <h2 id="alternate-code">Alternate code:</h2>
-<p>This version changes the commands slightly so that to go to the first column you
-should enter <code>0</code>, to go to the last column you should enter <code>$</code>, to quit you
-should enter <code>q</code>, to go back a word you should enter <code>b</code> and to go forwards a
-word you should enter <code>w</code>. Also, and perhaps most useful, rather than having to
-hit ctrl-L (form-feed, <code>\f</code>) to get back to command mode you can use the usual
-ESC (<code>\x1b</code>).</p>
+<p>The author provided us with deobfuscated versions including one for C89. The two
+C files in <code>deobfuscated</code>,
+<a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/ant/deobfuscated/ant.c">deobfuscated/ant.c</a> and
+<a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/ant/deobfuscated/ant-c89.c">deobfuscated/ant-c89.c</a> and the
+<a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/ant/deobfuscated/Makefile">deobfuscated/Makefile</a> will allow
+you to look at them and compile them if you wish. These are exactly like the
+original in every way, including in use, except they are deobfuscated.</p>
+<p>The other version, <a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/ant/ant.alt.c">ant.alt.c</a> changes the
+commands slightly so that to go to the first column you should enter <code>0</code>, to go
+to the last column you should enter <code>$</code>, to quit you should enter <code>q</code>, to go
+back a word you should enter <code>b</code> and to go forwards a word you should enter <code>w</code>.
+Also, and perhaps most useful, rather than having to hit ctrl-L (form-feed,
+<code>\f</code>) to get back to command mode you can use the usual ESC (<code>\x1b</code>).</p>
 <p>These will make it slightly less unwieldy for those familiar with vi(m); the
 rest was unchanged.</p>
 <h3 id="alternate-build">Alternate build:</h3>
 <pre><code>    make alt</code></pre>
 <h3 id="alternate-use">Alternate use:</h3>
-<p>Use <code>ant.alt</code> as you would <code>ant</code> above with the changes in the input keys. See
-the author’s remarks for the remaining keys.</p>
+<p>For the deobfuscated versions, use <code>ant.alt2</code> and <code>ant.alt2-c89</code> as you would
+<code>ant</code> above; for the other one, <code>ant.alt</code>, use it as you would <code>ant</code> above but
+with the changes in the input keys described above. See the author’s remarks for
+the remaining commands.</p>
 <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>
@@ -540,6 +550,9 @@ ISBN 0-13-822305-X, chapter 5</p>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/ant/Makefile">Makefile</a> - entry Makefile</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/ant/ant.alt.c">ant.alt.c</a> - alternate source code</li>
 <li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/ant/ant.orig.c">ant.orig.c</a> - original source code</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/ant/deobfuscated/ant-c89.c">deobfuscated/ant-c89.c</a> - author provided deobfuscated code converted from K&amp;R</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/ant/deobfuscated/ant.c">deobfuscated/ant.c</a> - author provided deobfuscated code</li>
+<li><a href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1991/ant/deobfuscated/Makefile">deobfuscated/Makefile</a> - author provided Makefile for deobfuscated code</li>
 </ul>
 <h2 id="secondary-files">Secondary files</h2>
 <ul>