Merge pull request #5687 from claudiosmweb/fix-undefined-function-wc_ship_to_billing_address_only-in-admin

Move the wc_ship_to_billing_address_only() function to wc-order-functions.php
Time to say goodbye from contributors list
Only remove featured transient when featured changes
Term counts only need to be deleted when terms are recounted
Removed some transient clears where unnecessary
Split out several transient clearing functions to be called only when needed.
Update woocommerce.php
Update class-wc-template-loader.php
Field show/hide options for stock fields and variations
add filter to method get_sku()
Avoid a "method should not be called statically"

Declare `WC_Post_Data::transition_post_status()` as `static`. Avoids a
PHP notice.
Don't assume the database prefix is wp_

Use `$wpdb->prefix` instead. It was inconsistent with the rest of the
query anyway.
Product admin/saving
Merge pull request #5706 from JDGrimes/static-method-notice

Avoid a "method should not be called statically" notice
Merge pull request #5704 from JDGrimes/wpdb-prefix-table

Don't assume the database prefix is wp_
Merge pull request #5700 from bryceadams/master

Stop people accessing wrapper-end.php directly
Merge pull request #5698 from coenjacobs/fix-contributors-list

Time to say goodbye from contributors list
Update copy-pasted docs

Fixes #5707
Don't validate empty fields
Simplify get_children and use stock status rather than stock level