completed mods related to pr #145

The tarballs were updated.

Removed reference to the previous mod from `thanks-for-help.md`.

Updated the `2012/omoikane/index.html` page.

Updated sitemap.

thanks-for-help.html

@@ -4066,21 +4066,6 @@ this!</p>
 </div>
 <p><a href="#cody">Cody</a> added the <a href="https://github.com/ioccc-src/winner/blob/master/2012/konno/try.sh">try.sh</a> script.</p>
 <p>Jump to: <a href="#">top</a></p>
-<div id="2012_omoikane">
-<h2 id="winning-entry-2012omoikane">Winning entry: <a href="2012/omoikane/index.html">2012/omoikane</a></h2>
-<h3 id="winning-entry-source-code-omoikane.c-1">Winning entry source code: <a href="https://github.com/ioccc-src/winner/blob/master/2012/omoikane//omoikane.c">omoikane.c</a></h3>
-</div>
-<p><a href="#cody">Cody</a> added the <a href="2012/omoikane/index.html#alternate-code">alternate
-versions</a> which will, if no arg is
-specified, read in the program itself, rather than <code>/dev/urandom</code>. This is
-mostly useful for those without a <code>/dev/urandom</code> device file, which the author
-pointed out as being a problem, but which is the default for the entry . The
-second alternate version is like the first except that it also sets binary mode
-on <code>stdin</code> and <code>stdout</code> which should theoretically make it work in Windows. This
-comes from the author’s remarks.</p>
-<p>Cody also added the <a href="https://github.com/ioccc-src/winner/blob/master/2012/omoikane/try.sh">try.sh</a> and
-<a href="https://github.com/ioccc-src/winner/blob/master/2012/omoikane/try.alt.sh">try.alt.sh</a> scripts.</p>
-<p>Jump to: <a href="#">top</a></p>
 <div id="2012_tromp">
 <h2 id="winning-entry-2012tromp">Winning entry: <a href="2012/tromp/index.html">2012/tromp</a></h2>
 <h3 id="winning-entry-source-code-tromp.c-1">Winning entry source code: <a href="https://github.com/ioccc-src/winner/blob/master/2012/tromp//tromp.c">tromp.c</a></h3>