doc: fix links: 302/302, images from lfw.org, wayback for sc

Some documents result in 302 status:

   www.lfw.org -> lfw.org
   new location for IIS documentation
   pypi link missing trailing /

All software carpentry links inline point to wayback machine.

Some images used in original_overview still point to lfw. Make them
point to new downloaded copies of images.

Author: rouilj

doc/announcement.txt

@@ -104,7 +104,7 @@ To give Roundup a try, just download (directions above), unpack and run::
 then open the url printed by the demo app.
 
 Release info and download page:
-     https://pypi.org/project/roundup
+     https://pypi.org/project/roundup/
 Source and documentation is available at the website:
      https://www.roundup-tracker.org/
 Mailing lists - the place to ask questions:

doc/html_extra/images/bugzilla-1.gif

@@ -11,7 +11,7 @@
 <tr>
 
 <td align="left">
-<a href="http://www.software-carpentry.com">
+<a href="https://web.archive.org/web/20010828124306/http://www.software-carpentry.com">
 <img src="images/logo-software-carpentry-standard.png" alt="[Software Carpentry logo]" border="0">
 </a>
 </td>
@@ -41,7 +41,7 @@
 be distributed only subject to the terms and conditions set forth in
 the Software Carpentry Open Publication License, which is available at:
 <center>
-<a href="http://www.software-carpentry.com/openpub-license.html">http://www.software-carpentry.com/openpub-license.html</a>
+<a href="https://web.archive.org/web/20010828124306/http://www.software-carpentry.com/openpub-license.html">http://www.software-carpentry.com/openpub-license.html</a>
 </center>
 </em></td>
 
@@ -54,7 +54,7 @@
 <h1 align=center>Roundup</h1>
 <h3 align=center>An Issue-Tracking System for Knowledge Workers</h3>
 <h4 align=center>Ka-Ping Yee</h4>
-<h4 align=center><a href="http://www.lfw.org/">lfw discorporated</a><br>
+<h4 align=center><a href="http://lfw.org/">lfw discorporated</a><br>
 <a href="mailto:[email protected]">[email protected]</a></h4>
 
 <!-- the following line will start a comment in lynx -soft_dquotes mode -->
@@ -106,11 +106,11 @@ <h2><a name="overview">Overview</a></h2>
 notifying interested parties when issues are edited.
 
 <p>This design draws on experience from 
-<a href="http://www.lfw.org/ping/roundup.html">an existing
+<a href="http://lfw.org/ping/roundup.html">an existing
 implementation</a> which we will refer to
 as "the Roundup prototype".
 The graphical interface we have in mind will resemble
-<a href="http://www.lfw.org/ping/roundup-1.png">
+<a href="images/roundup-1.png">
 the main display of the prototype</a>.
 
 <p align=center>
@@ -437,7 +437,7 @@ <h3><a name="schema">The Default Schema</a></h3>
 development items to design requirements which
 they satisfy, which should
 be enough to provide basic support for
-<a href="http://software-carpentry.codesourcery.com/lists/sc-discuss/msg00046.html">traceability</a>.
+<a href="https://web.archive.org/web/20010828124306/http://software-carpentry.codesourcery.com/lists/sc-discuss/msg00046.html">traceability</a>.
 Clearly there is also potential for adding
 properties for related source files, check-ins,
 test results, regression tests for resolved items,
@@ -745,19 +745,19 @@ <h3><a name="browse">Browsing and Searching</a></h3>
 useful information in accordance with our guiding principle of
 <em>efficiency</em>.
 For example, 
-<a href="http://www.lfw.org/ping/bugzilla-4.gif">Bugzilla
+<a href="images/bugzilla-4.gif">Bugzilla
 initially displays seven or eight items of the index</a>, but only
 after the user has 
-<a href="http://www.lfw.org/ping/bugzilla-1.gif">waded</a>
+<a href="images/bugzilla-1.gif">waded</a>
 through
-<a href="http://www.lfw.org/ping/bugzilla-2.gif">three</a>
+<a href="images/bugzilla-2.gif">three</a>
 bewildering
-<a href="http://www.lfw.org/ping/bugzilla-3.gif">screens</a> of
+<a href="images/bugzilla-3.gif">screens</a> of
 form widgets.
-<a href="http://www.lfw.org/ping/jitterbug-1.gif">Jitterbug can't
+<a href="images/jitterbug-1.gif">Jitterbug can't
 even fit any items at all in the first screenful</a>, as it's
 taken up by artwork and adminstrative debris.  In contrast,
-<a href="http://www.lfw.org/ping/roundup-1.gif">in the
+<a href="images/roundup-1.png">in the
 Roundup prototype,
 25 high-priority issues are immediately visible</a>, with
 most of the screen space devoted to their descriptions.  
@@ -877,7 +877,7 @@ <h2><a name="issues">Open Issues</a></h2>
 
 <p>This design tries to address as many as possible of the
 suggested requirements mentioned on
-<a href="http://software-carpentry.codesourcery.com/sc_track">the contest page</a>:
+<a href="https://web.archive.org/web/20010828124306/http://software-carpentry.codesourcery.com/sc_track">the contest page</a>:
 
 <ul>
 <li>configuring states: Edit the schema.

doc/html_extra/images/bugzilla-2.gif

@@ -39,7 +39,7 @@
 
 <h1 align=center>Roundup</h1>
 <h3 align=center>An Issue-Tracking System for Knowledge Workers</h3>
-<h4 align=center><a href="http://www.lfw.org/ping/">Ka-Ping Yee</a><br>
+<h4 align=center><a href="http://lfw.org/ping/">Ka-Ping Yee</a><br>
 <a href="mailto:[email protected]">[email protected]</a></h4>
 <h3 align=center>Implementation Guide</h3>
 

doc/html_extra/images/bugzilla-3.gif

@@ -717,7 +717,7 @@ See:
 
 More information about ISS setup may be found at:
 
-   https://docs.microsoft.com/en-us/iis/
+   https://learn.microsoft.com/en-us/iis/
 
 Copy the ``share/roundup/cgi-bin/roundup-cgi``
 (``frontends/roundup.cgi`` in source tree) file to your web