update publically visible copyright years.

maybe these should be consolidated into a constant?

src/about.php

@@ -86,7 +86,7 @@ if ( isset($plugins) && count ($plugins) > 0 ) {
 </small>
 <br /><br />
 </td></tr>
-<tr><td align="center">&copy; 1999 - 2007 The SquirrelMail Project Team</td></tr>
+<tr><td align="center">&copy; 1999 - 2008 The SquirrelMail Project Team</td></tr>
 </table></p>
 <?php
 $oTemplate->display('footer.tpl');

templates/default/message_list.tpl

@@ -551,5 +551,5 @@ if ($non_clicked_class != 'even' && $non_clicked_class != 'odd'
 </div>
 
 <?php if (!$hide_sm_attributions): ?>
-<p class="sqm_squirrelcopyright">&copy; 1999-2007 The SquirrelMail Project Team - <a href="about.php">About SquirrelMail</a></p>
+<p class="sqm_squirrelcopyright">&copy; 1999-2008 The SquirrelMail Project Team - <a href="about.php">About SquirrelMail</a></p>
 <?php endif; ?>