Removed 'apply before tax' options for coupons - this should be the default core behaviour
Remove 'order' discounts from classes
Store discount 'tax' to show discounts on prices including tax more accuratly

Also deprecated some functions named after having 2 levels of discounts.
Execute `woocommerce_order_action_{$action}` only once

Prevents a “Maximum function nesting level reached” fatal error in
certain cases.

Since this ends up running on `’save_post’`, updating something like
the order status while hooked onto to
`woocommerce_order_action_{$action}` causes a fun recursion :)
Add help tip for schedule sales info

Closes #6863
add display_prices in variation data

The commit introduces 3 changes:
1. It adds 2 extra fields to the available_variations array,
display_price and display_regular_price, to be used by extensions in
cases like
https://github.com/woothemes/woocommerce-product-addons/issues/19
2. Introduces a get_display_price() function in WC_Product to retrieve
product prices incl or excl tax relative to the
woocommerce_tax_display_shop setting.
3. Fixes a minor issue where passing a 0 price to
get_price_including_tax() or get_price_excluding_tax() results in a
wrong output.
Merge pull request #6893 from bryceadams/patch-6863

Add help tip for schedule sales info
Added missing textdomain

cc @bryceadams #fail
Merge branch 'tax-coupon-handling' Closes #6830

Conflicts:
	assets/js/admin/meta-boxes-order.min.js
	includes/api/class-wc-api-coupons.php
	includes/class-wc-cart.php
	templates/checkout/review-order.php
Merge branch 'master' of https://github.com/woothemes/woocommerce
Update form-tracking.php
Update form-tracking.php
Merge pull request #6901 from MindyPostoff/master

Update form-tracking.php
Fixed the wc_update_new_customer_past_orders() function, closes #6903

get_post_status() returns post status (string) or false (bool) on failure.
Fixed the coupons tests and improved the tax tests
clickable item name in orders table
add order_item_visible_filter

In line with the existing 'cart_item_visible' filter.
Merge branch 'breadcrumbs-class'

Adds endpoint page titles for #5522
Fixes link back to endpoint pages and closes #6638
Avoids need for breadcrumb fix which closes #6834
Removes the need and closes #6834
Fixes #6840
Adjust wc_timezone_string to use is_dst and return the timezone when not false. Only fallback to UTC when needed.

Fixes #6897
Merge pull request #6908 from franticpsyx/order_item_visible_filter

[2.3] Add order_item_visible_filter