Add category parent patch

[donncha]

This patch will fix the problem when adding categories with a parent category. The parent is lost in the SQL.
Replace line 110 of wp-admin/admin-db.php:

$wpdb->query("INSERT INTO $wpdb->categories (cat_ID, cat_name, category_nicename, category_description, category_parent) VALUES ('0', '$cat_name', '$category_nicename', '$category_description', '$category_parent')");

$cat at the end of the line becomes $category_parent.

[ryan]

(In [2959]) Category parent fix from donncha. fixes #1775