* New: Added support for new recurring options found in Recurring Donations 1.6+ - please update recurring if you're using it alongside Manual Donations!
* New: Added a filter within the donation validation method so other add-ons can hook in properly. This is in preparation for the Tributes add-on coming compatiblity release with Manual Donations.
* Tweak: Added a metakey to easily detect whether a donation has been added manually or not.
* Tweak: Revised how manual donations loads translation files.
