* Improved the navigation bar: don't include all projects (since that

doesn't scale), and include links for jobset/job specific pages.
  The main page now lists the projects.
* Overview pages for jobsets and jobs.
* Links to the channels.
* Jobsets are now defined and edited in a separate action.

src/root/overview.tt

@@ -0,0 +1,59 @@
+[% WRAPPER layout.tt title="Overview" %]
+[% PROCESS common.tt %]
+
+
+<h1>Hydra Overview</h1>
+
+<p>Welcome to Hydra, the <a href="http://nixos.org/">Nix-based</a>
+continuous build system.  Hydra continuously builds, tests and
+releases software packages from source repositories. <a
+href="http://nixos.org/hydra"><em>[Read more...]</em></a></p>
+
+
+<h2>Projects</h2>
+
+<p>The following projects are hosted on this server:</p>
+
+<table class="tablesorter">
+  <thead>
+    <tr>
+      <th>Id</th>
+      <th>Name</th>
+      <th>Description</th>
+    </tr>
+  </thead>
+  <tbody>
+    [% FOREACH p IN projects %]
+    <tr class="clickable [% IF odd %] odd [% END; odd = !odd %]"
+        onclick="window.location = '[% c.uri_for('/project' p.name) %]'">
+      <td>[% INCLUDE renderProjectName project = p.name %]</td>
+      <td>[% HTML.escape(p.displayname) %]</td>
+      <td>[% WRAPPER maybeLink uri=p.homepage %][% HTML.escape(p.description) %][% END %]</td>
+    </tr>
+    [% END %]
+  </tbody>
+</table>
+
+
+<h2>Channels</h2>
+
+<p>This server provides the following global Nix channels:</p>
+
+<ul>
+  <li>
+    <a href="[% c.uri_for('channel' 'latest') %]"><tt>latest</tt></a> —
+    contains the latest successful build of every job.
+  </li>
+  <li>
+    <a href="[% c.uri_for('channel' 'all') %]"><tt>all</tt></a> —
+    contains every successful, non-garbage-collected build of every job.
+  </li>
+</ul>
+
+
+<h2>Statistics</h2>
+
+[% INCLUDE showBuildStats %]
+
+
+[% END %]