* 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

sql.php3

@@ -341,7 +341,7 @@ else {
             $error        = PMA_mysql_error();
             include('./header.inc.php3');
             $full_err_url = (ereg('^(db_details|tbl_properties)', $err_url))
-                          ? $err_url . '&show_query=y&sql_query=' . urlencode($sql_query)
+                          ? $err_url . '&show_query=1&sql_query=' . urlencode($sql_query)
                           : $err_url;
             PMA_mysqlDie($error, $full_sql_query, '', $full_err_url);
         }