*Add and document ArticleRollbackComplete hook. Lets FlaggedRevs be able to autoflag rollbacks when possible.

docs/hooks.txt

@@ -296,6 +296,11 @@ $protect: boolean whether it was a protect or an unprotect
 $reason: Reason for protect
 $moveonly: boolean whether it was for move only or not
 
+'ArticleRollbackComplete': after an article rollback is completed
+$article: the article that was edited
+$user: the user who did the rollback
+$revision: the revision the page was reverted back to
+
 'ArticleSave': before an article is saved
 $article: the article (object) being saved
 $user: the user (object) saving the article

includes/Article.php

@@ -2289,6 +2289,8 @@ class Article {
 			$flags |= EDIT_FORCE_BOT;
 		$this->doEdit( $target->getText(), $summary, $flags );
 
+		wfRunHooks( 'ArticleRollbackComplete', array( $this, $wgUser, $target ) );
+
 		$resultDetails = array(
 			'summary' => $summary,
 			'current' => $current,