* db_details.php3, db_stats.php3, main.php3, sql.php3

tbl_change.php3, tbl_query_box.php3, user_details.php3
libraries/common.lib.php3:
- changed show_query to use 1/0 instead of 'y'/'n'
* sql.php3, libraries/common.lib.php3:
- Improved logic of edit, show_as_php, explain and validator
in the SQL query box

db_stats.php3

@@ -31,7 +31,7 @@ if ((!empty($submit_mult) && isset($selected_db))
                 . '&convcharset=' . $convcharset
                 . '&server=' . $server;
     $action     = 'db_stats.php3';
-    $show_query = 'y';
+    $show_query = '1';
     include('./mult_submits.inc.php3');
 }