ensure storage is writable when setting support flag. fixes #6755
Preventing errors when adding a widget using the WP Customize

Fixed coding standards and used methods from WC_Widget for start and end the widget
Merge branch 'master' of github.com:woothemes/woocommerce
Add placeholder attribute for settings API #6764
Update default for 'Default Product Sorting' option
Simplify the condition for custom menu order :)
Merge pull request #6757 from tamarazuk/master

Introduce `woocommerce_product_is_on_sale` filter
Modified since current_user_can() returns boolean ;)
Merge pull request #6756 from joeflynn/quota-exceeded

ensure storage is writable when setting support flag. fixes #6755
Merge pull request #6765 from bryceadams/master

Add placeholder attribute for settings API #6764
Merge pull request #6773 from axisthemes/menu-order

Simplify the condition for custom menu order
gallery column css. closes #6767
coding standards find/replace fail ^^. closes #6775
Cleanup for the WC_Admin_Welcome Class
Unused var if needed in future we can use WC_PLUGIN_BASENAME constant
use of final class helper function
Some shipping class tidyup
Some gap added intensionally ;)
Merge remote-tracking branch 'upstream/master' into welcome
Some mistake revoked