* Fix: The percentage and amount fields in WP-Admin did not appear styled properly since WordPress updated their field styles. This fixes those styles so they appear nicely with the new WP Core field styles.
* Fix: Resolved an issue with using a zero decimal currency configuration with Recurring Donations where renewals were not displaying properly formatted amounts.
* Fix: Added additional checks and improvements to fee calculations when using a comma delimited currency such as Euros, BRL, etc. to further ensure proper expected fee payments.
