Add translation English to Korean

Update translation
Add transition English to Korean

Update Language
Add trainsition English to Korean

Update transition
Add admin transition file of English to Korean

Add admin transition file of English to Korean
Korean transition update.

Changing the WooCommerce to the korean makes error on report graph so, I
put it back as it is
Update Korean Transition

Update Korean Transition
Update Korean Transition

Update Korean Transition
Update for korean Transition

Update for korean Transition
Order Item Meta values filter
Cart item key added to order item meta action
#3118 Fixed

#3118 Fixed

- Tested [related_products] shortcode.
- Replaced arguments with single $args = array() argument.
#3160 Fixed

#3160 Fixed

Renamed "Shipping" to "Shipping and Handling"
Backwards compat for #3118
Check if variable isset to avoid undefined error
Updated Danish translations
Update woocommerce-admin-sv_SE.po

Minor updates, spelling errors.
Update woocommerce-sv_SE.po

Complete. Out-of-the-box WooCommerce installation with WordPress in Swedish results in more than 1,000 untranslated strings. This update takes care of all that.
Update woocommerce-admin-sv_SE.po

Spelling errors.
admin-sv_SE (.mo)
Use $order->get_order_number() instead of $order_id.