Reminder for WooCommerce Unpaid Orders
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version 2.6
– Important bugfix for bulk emails sending

version 2.5
– Autoupdater

version 2.4
– Corrects some warnings
– Improve english translation

version 2.3
– Add an optional link to the checkout into the email

version 2.2
– Add some email copy of the reminder

version 2.1
- Add a filter on cron timing

version 2.0.1
- Remove debug trace

version 2.0
– Automation
– Bulk send email
– Moving statuses choice into back-end
– Update notification in back-end
– Spanish translation (thanks to Carlos Asensio)
– Compatible check with WP 4.1, WC 2.0,  WC 2.1, WC 2.2, WC 2.3

version 1.1.1 :
- Adding a hook during reminder sending process
- Prefix the post_meta with an _

version 1.1 :
- Add an order note when sending the reminder
- Display de date of the sent reminder in the tooltip

version 1.0.1 :
- Remove a deprecated function

version 1.0 :
- New email "Payment reminder". To configure : WooCommerce > Settings > Emails
- New action button in orders panel to send the email
- New "email resend action" in the order detail to send the email 
- Compatible with Wordpress 3.8.1 and WooCommerce 2.0 or 2.1 
