Remove almost all absolute URLs for this site

In a number of cases, an absolute URL for www.ioccc.org
was replaced with a document root relative URL.

In some cases the absolute URL was removed.

Removed mirror request pages.

2011/dlowe/hint.html

@@ -36,9 +36,10 @@ NOTE: The directory entries MUST end in a /
 
 <h3>Try:</h3>
 
-<pre><code>Download the dlowe-aux-data.tar.bz2 file from:
-
-    curl -O http://www.ioccc.org/2011/dlowe/dlowe-aux-data.tar.bz2
+Download the
+<a href="/2011/dlowe/dlowe-aux-data.tar.bz2">2011 dlowe entry dlowe-aux-data.tar.bz2</a>
+file and then:
+<pre><code>
 
 tar -jxf dlowe-aux-data.tar.bz2
 

2011/goren/hint.html

@@ -73,7 +73,7 @@ stuffing data.</p>
 have noted that conditions make the code harder to read and understand.
 A good example would be:</p>
 
-<p><a href="http://www.ioccc.org/years.html#2004_burley">Brent Burley&rsquo;s 2004 IOCCC winner</a></p>
+<p><a href="/years.html#2004_burley">Brent Burley&rsquo;s 2004 IOCCC winner</a></p>
 
 <p>That entry omits conditional statements such as &ldquo;if&rdquo; and &ldquo;while&rdquo;.
 His achievement in improving clarity by omitting conditions is
@@ -100,14 +100,6 @@ It does work on 64-bit Linux, becasue all functions are below 4GB.</p>
 
 <hr />
 
-<!--
-(c) Copyright 1984-2012, [Leo Broukhis, Simon Cooper, Landon Curt Noll][judges] - All rights reserved
-This work is licensed under a [Creative Commons Attribution-ShareAlike 3.0 Unported License][cc].
-
-[judges]: http://www.ioccc.org/judges.html
-[cc]: http://creativecommons.org/licenses/by-sa/3.0/
--->
-
 <TABLE><TR>
 <TD><a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/"><img alt="Creative Commons License" style="border-width:0" src="http://i.creativecommons.org/l/by-sa/3.0/88x31.png" /></a></TD>
 <TD><P>&copy; Copyright 1984-2012, 

2011/konno/hint.html

@@ -65,14 +65,6 @@ Can you then minimize the size of that code?</p>
 
 <hr />
 
-<!--
-(c) Copyright 1984-2012, [Leo Broukhis, Simon Cooper, Landon Curt Noll][judges] - All rights reserved
-This work is licensed under a [Creative Commons Attribution-ShareAlike 3.0 Unported License][cc].
-
-[judges]: http://www.ioccc.org/judges.html
-[cc]: http://creativecommons.org/licenses/by-sa/3.0/
--->
-
 <TABLE><TR>
 <TD><a rel="license" href="http://creativecommons.org/licenses/by-sa/3.0/"><img alt="Creative Commons License" style="border-width:0" src="http://i.creativecommons.org/l/by-sa/3.0/88x31.png" /></a></TD>
 <TD><P>&copy; Copyright 1984-2012,