Ensure attributes exist
Ability to add custom quantity using shortcode
Update class-wc-shortcodes.php
adding wordpress php formatting"
adding plain text email flag to bacs
adding plain text email flag to cheque
forced end of line in bank_details method to fix the #4999
improved the bacs email instructions
Update add-to-cart.php
wc_get_product_ids_on_sale should never return post id of 0 fixes #5002
shop order - fixes non object error on comments when order is in the trash
external product review link not opening on load fixes #5008
minified single-product.js
Notice functions are 'core' so it makes sense to load session classes 'core' too (not just frontend)
Merge pull request #5010 from splashingpixels/review-comments

Review comments
Merge pull request #5005 from splashingpixels/shop-order

shop order - fixes non object error on comments when order is in the tra...
Merge pull request #5003 from splashingpixels/coupon

wc_get_product_ids_on_sale should never return post id of 0 fixes #5002
Merge pull request #4997 from BFTrick/wp-bacs-formatting

Use WordPress Brace Code Style in BACS Gateway Class
Merge pull request #4998 from BFTrick/plain-text-flag

Add Plain Text Flag Gateways
wc_get_endpoint_url - added support for permalinks containing a query string Closes #5016