Added config variable for docroot: the moodle documentations root. This is

used to display a link for the docs that are relevant for the current page.

admin/configvars.php

@@ -299,10 +299,15 @@ class configvarrss extends configvar {
 /// language menu
     $interface['langcache'] = new configvar ( get_string('configlangcache', 'admin'),
         choose_from_menu($noyesoptions, 'langcache', $config->langcache, '', '', '', true) );
+        
 /// locale
     $interface['locale'] = new configvar ( get_string('configlocale', 'admin'),
         '<input name="locale" type="text" size="10" value="'.s($config->locale).'" alt="locale" />' );
 
+/// docroot
+    $interface['docroot'] = new configvar ( get_string('configdocroot', 'admin'),
+        '<input name="docroot" type="text" size="60" value="'.s($config->docroot).'" alt="docroot" />' );
+
 /// timezone
     
     $interface['timezone'] = new configvar ( get_string('configtimezone', 'admin'),