Double declaration fix
Added the type attribute to the coupon input on the cart page
Only show settings link if method has_settings
Rounding order_tax and order_shipping_tax restricts our ability to get an accurate tax_total after an order is made. Fixes some paypal rounding requests.

@coenjacobs
Fix display of fee_taxes when spanning multiple tax classes Closes #4803
Merge pull request #4883 from nathanmarks/coupon-input-type

Added the type attribute to the coupon input on the cart page
Merge pull request #4877 from Ramoonus/patch-2

Double declaration fix
capital_p_dangit()
Use get_col for sku search - return multiple results.
Merge pull request #4888 from JustinSainton/patch-1

capital_p_dangit()
wc_cart_totals_coupon_label function and filter to override coupon labels
Transifex links
tx config
Updated languages
radios. closes #4892
Check product exists before accessing methods

To avoid fatal errors when generating renewal orders in Subscriptions.
Merge pull request #4902 from thenbrent/master

Check product exists before accessing methods when sending order email
Update abstract-wc-product.php

Add filter to is_taxable() method so that plugins can better control what is and isn't taxable based on various conditions, such as customer's billing or shipping address, etc.
Load frontend lang first, and remove no-longer needed alt_lang loader Closes #4874
remove un-wanted hentry from products Closes #4880