Add author_link filter.

git-svn-id: https://develop.svn.wordpress.org/trunk@2154 602fd350-edb4-49c9-b593-d223f7449a82

wp-includes/template-functions-author.php

@@ -136,6 +136,7 @@ function get_author_link($echo = false, $author_id, $author_nicename) {
 				$link = get_settings('home') . trailingslashit($link);
     }
 
+		$link = apply_filters('author_link', $link);
     if ($echo) echo $link;
     return $link;
 }