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
WooCommerce Install Pages Enhancements

When attempting to install a new page:

* only search for pages (ignore posts and other custom post types)
* search for an existing page with the specified page content (typically a shortcode), or if no page content is specified, search for an existing page with the specified page slug.

Should fix #3100 and will also help ensure that WooCommerce only attempts to reuse existing pages that have the WooCommerce shortcodes on them, thus reducing conflicts with other eCommerce plugins.
Remove dupliate email actions

Remove duplicate 'woocommerce_order_status_pending_to_processing' and
'woocommerce_order_status_pending_to_on-hold' email actions
Prevent cache helper notices
Handling for multiselect fields on checkout, and a filter for third party handling.

@coe
Check product exists.

@coe
Merge pull request #3231 from thenbrent/master

Remove duplicate email actions
Merge pull request #3226 from arhipaiva/master

Finnish up to date: 2013-05-22 - WC version 2.1-X
Simplified variation definition (public false handles everything)
woocommerce_load_alt_locale
Refactor: Widget classes, made abstract, merged similar product listing widgets into 1