Make spamprotection for comments opt in by default

_config.php

@@ -9,10 +9,11 @@
  * @package spamprotection
  */
 
-if(class_exists('Comment')) {
-	/**
-	 * If the comments module is installed then add the spam protection module 
-	 * to the comments form via this extension
-	 */
-	Object::add_extension('CommentingController', 'CommentSpamProtection');
-}
+/**
+ * If the comments module is installed then add the spam protection module 
+ * to the comments form via this extension.
+ *
+ * Place this line in your mysite/_config.php
+ */
+
+// Object::add_extension('CommentingController', 'CommentSpamProtection');

code/extensions/CommentSpamProtection.php

@@ -12,7 +12,7 @@ class CommentSpamProtection extends Extension {
 	 * Disable the AJAX commenting and update the form
 	 * with the {@link SpamProtectorField} which is enabled
 	 */
-	function alterCommentForm(&$form) {
+	public function alterCommentForm(&$form) {
 		SpamProtectorManager::update_form($form, null, array(
 			'Name' => 'author_name', 
 			'CommenterURL' => 'author_url',