Fix potential fatal error when fetching orders via API
Fix rounding bug with pre-tax product % coupon
added extra class to cart item data, fixes #4600
Removed (document).ready from jQuery scripts

jQuery(document).ready(function($) { is equivalent to calling
jQuery(function($) {.

http://api.jquery.com/ready/
Remove dup discount calculation
Merge pull request #4606 from toddlahman/master

Removed (document).ready from jQuery scripts
Merge pull request #4601 from maxrice/master

Fix potential fatal error when fetching orders via API
Merge pull request #4603 from thenbrent/master

Fix rounding bug with pre-tax product % coupon
Merge pull request #4605 from claudiosmweb/fix_4600

Add extra class to cart item data
woocommerce_coupon_options  Hook breaks custom options - used in 2 places. May have been mistake
removed a &darr; closes #4598