Remove links to gone catalyst website

fixes perlorg#372

docs/learn/lessions/web_server/plack/article.html

@@ -184,7 +184,7 @@ <h2>More Middleware and Apps</h2>
 At this stage it is probably worth investigating one of the many
 web frameworks which offer PSGI support, so can be run with Plack.
 These frameworks offer far structure and support for doing more complex tasks.
-Have a look at <a href="http://www.catalystframework.org/">Catalyst</a>,
+Have a look at <a href="https://metacpan.org/dist/Catalyst-Manual/view/lib/Catalyst/Manual/Intro.pod">Catalyst</a>,
 <a href="http://www.mojolicious.org/">Mojolicious</a> or <a href="http://perldancer.org/">Dancer</a>. The Perl.org <a href="http://www.perl.org/about/whitepapers/perl-webframework.html">web frameworks white paper</a> discusses just a few of the advantages of using a framework.
 </p>
 

docs/lists/data/lists.json

@@ -484,8 +484,7 @@
       "sub" : "http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst",
       "summary" : null,
       "tags" : "Module, Modules, WWW, Web",
-      "unsub" : "http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst",
-      "url" : "http://www.catalystframework.org"
+      "unsub" : "http://lists.scsys.co.uk/cgi-bin/mailman/listinfo/catalyst"
    },
    "catalyst-de" : {
       "archive" : [

docs/www/about.html

@@ -96,7 +96,7 @@ <h4>
         Web Frameworks
     </h4>
     <p>
-        There are many web frameworks written in Perl, a leading one is <a href="http://www.catalystframework.org/">Catalyst</a>.
+        There are many web frameworks written in Perl, a leading one is <a href="https://metacpan.org/dist/Catalyst-Manual/view/lib/Catalyst/Manual/Intro.pod">Catalyst</a>.
     </p>
     <h4>
         Database integration

docs/www/about/whitepapers/perl-webframework.html

@@ -13,7 +13,7 @@ <h2>
     <em>Tired of inflexible "out-of-the-box" solutions that don't do what you want, or do too much? - Catalyst lets you develop exactly what you need.</em>
 </p>
 <p>
-    The <a href="http://www.catalystframework.org/">Catalyst Web Framework</a> is a comprehensive and flexible environment for quickly building high-functionality applications and is aimed at medium- to large-scale web projects. Catalyst has been designed with rapid development, scalability, extendability and maintenance in mind, including strong belief in backwards compatible deployment. Catalyst is based on the <a href="http://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller">MVC</a> (Model, View, Controller) design pattern, making components cleanly separated and easily interchangeable.
+    The <a href="https://metacpan.org/pod/Catalyst::Manual">Catalyst Web Framework</a> is a comprehensive and flexible environment for quickly building high-functionality applications and is aimed at medium- to large-scale web projects. Catalyst has been designed with rapid development, scalability, extendability and maintenance in mind, including strong belief in backwards compatible deployment. Catalyst is based on the <a href="http://en.wikipedia.org/wiki/Model%E2%80%93view%E2%80%93controller">MVC</a> (Model, View, Controller) design pattern, making components cleanly separated and easily interchangeable.
 </p>
 <p>
     The model contains business logic and interaction with any database or other systems. View determines how data is rendered, if you want to use an HTML template, or output the data as JSON. Controllers should be lightweight and handle the interaction between user and the model(s) rendering the results with the required view.