Announce tycho 0.17.0

Add link to tycho extras site docs
diff --git a/documentation.php b/documentation.php
index d350e29..597857f 100644
--- a/documentation.php
+++ b/documentation.php
@@ -25,7 +25,12 @@
 <a href="http://wiki.eclipse.org/Tycho/Reference_Card">Tycho Reference Card</a> and <a href="http://wiki.eclipse.org/Tycho/Packaging_Types">Tycho Packaging Types</a>.
 </p>
 
-<p>We also publish the <a href="sitedocs/index.html">reference maven plugin documentation for Tycho</a>
+<p>For detailed reference documentation, refer to 
+<ul>
+  <li><a href="sitedocs/index.html">Maven plugin documentation for Tycho</a></li>
+  <li><a href="sitedocs-extras/index.html">Maven plugin documentation for Tycho Extras</a></li>
+</ul>
+  
 </p>
 
 <p>Other sources of information:
diff --git a/pages/_index.html b/pages/_index.html
index db960e3..77bf5f6 100644
--- a/pages/_index.html
+++ b/pages/_index.html
@@ -111,7 +111,7 @@
 <div id="headlines">
 <h3>New and Noteworthy</h3>
 <p>
-Tycho 0.16.0 was released. See the <a href="http://wiki.eclipse.org/Tycho/Release_Notes/0.16">release notes</a> for details.
+Tycho 0.17.0 was released. See the <a href="http://wiki.eclipse.org/Tycho/Release_Notes/0.17">release notes</a> for details.
 </p>
 </div>