- 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/functions_user.php

@@ -1095,7 +1095,7 @@ function validate_email($email)
 		return false;
 	}
 
-	if (!preg_match('#^[a-z0-9\.\-_\+]+?@(.*?\.)*?[a-z0-9\-_]+?\.[a-z]{2,4}$#i', $email))
+	if (!preg_match('/^' . get_preg_expression('email') . '$/i', $email))
 	{
 		return 'EMAIL_INVALID';
 	}