- add additional auth check to the permission roles modules

- added new function to return globally used expressions (get_preg_expression($mode)). This should be very helpful in getting wide spread similar checks (regular expressions) to one place reducing the risk of forgetting to change every location if you fix one. ;) We will add additional ones later, at the moment only the email check is retrieved...
- added "active module" var to the module class returning the current active module
- changed call to image magick
- add administrator to global moderators group by default
- extend auth_option column a little bit
- other bugfixes


git-svn-id: file:///svn/phpbb/trunk@6135 89ea8834-ac86-4346-8a33-228a782c2dd0

phpBB/includes/acp/acp_search.php

@@ -485,9 +485,6 @@ class acp_search
 	{
 		global $db;
 
-		/**
-		* @todo what is faster, doing a MAX() or an ORDER BY post_id and LIMIT 1?
-		*/
 		$sql = 'SELECT MAX(post_id) as max_post_id
 			FROM '. POSTS_TABLE;
 		$result = $db->sql_query($sql);