Updates admin plugin and theme browse pages to link to upcoming and u…

…pdated pages in the Omeka codex.

admin/themes/default/plugins/browse.php

@@ -71,7 +71,7 @@
 <p>You don't have any plugins installed.  Add them to the plugins directory to see them listed here.</p>
 <?php endif; ?>
 
-<p class="manageplugins">Add new plugins by downloading them from the <a href="http://omeka.org/download/plugins/">Omeka Plugins  Directory</a>, or <a href="http://omeka.org/codex/index.php?title=Writing_a_Plugin">write your own</a>!</p>
+<p class="manageplugins">Add new plugins by downloading them from the <a href="http://omeka.org/add-ons/plugins/">Omeka Plugins  Directory</a>, or <a href="http://omeka.org/codex/Plugin_Writing_Best_Practices">write your own</a>!</p>
 </div>
 
 <?php foot(); ?>

admin/themes/default/themes/browse.php

@@ -44,6 +44,6 @@
 	<input type="submit" name="submit" class="submit submit-medium" id="submit" value="Switch Theme" />
 </form>
 
-<p class="managethemes">Add new themes by downloading them from the <a href="http://omeka.org/download/themes/">Omeka Theme Directory</a>, or <a href="http://omeka.org/codex/Designing_a_Public_Theme">design your own</a>!</p>
+<p class="managethemes">Add new themes by downloading them from the <a href="http://omeka.org/add-ons/themes/">Omeka Theme Directory</a>, or <a href="http://omeka.org/codex/Theme_Writing_Best_Practices">design your own</a>!</p>
 </div>
 <?php foot(); ?>