Add bulk amount field to woocommerce products
Add page that lists all items with negative stock
Generate a nice looking table
Gather errors while creating the bulk order page

Also show a warning when this happens.
Make the bulk order table look like it's generated by wordpress
Link to the product edit page in the row title
Make the bulk order value identifiable
sgt_something_wrong: perform check on entire post

Perform the 'something_wrong' check on the entire post. This makes it
easier to add new checks.
sgt_generate_bulk_order: add sku
add_back_order_page_line: use earlier result of $something_wrong
add_back_order_page_line: use calculated back_order
add_back_order_page: don't limit the WP_Query
Fix store_backorder form

Remove save_bulk_order.php as it's unused.
Show store page if store button is pushed

It's rather useless to display data outside of the WP framework _and_
show the same page people have just acknowledged. This just behaves so
much nicer.
pull out get_sku

we're going to need it later on.
store_bulk_order: sort items alfabetically by sku
store_backorder: fix syntax error
fix incorrect array id
pull out fill_div function
Teach backorder to reset the stock