update index.html and .entry.json per recent manifest changes

Every index.html file (for entries) was updated as the tarball download
description was changed to 'download entry source' (though I think this
is a mistake as the C file is described as 'entry source' so it's
ambiguous - that might be fixed soon or it mightn't be until some other
changes are made that need a manifest update).

1984/mullender/index.html

@@ -550,7 +550,7 @@ for 1984/mullender</h1>
 <li><a href="index.html">index.html</a> - entry home page</li>
 <li><a
 href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1984/mullender/mullender.c">mullender.c</a>
-- winning source</li>
+- entry source</li>
 <li><a
 href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1984/mullender/Makefile">Makefile</a>
 - entry Makefile</li>
@@ -567,7 +567,7 @@ href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1984/mullender/a.
 href="https://github.com/ioccc-src/temp-test-ioccc/blob/master/1984/mullender/gentab.c">gentab.c</a>
 - author tool to create constants</li>
 <li><a href="1984_mullender.tar.bz2">1984_mullender.tar.bz2</a> -
-download winning source</li>
+download entry source</li>
 </ul>
 <h2 id="secondary-files">Secondary files</h2>
 <ul>