Gravity Forms Mailchimp Addon 5.5.0

- Added Gravity Forms license key to oAuth process.
- Added support for async (background) feed processing to improve form submission performance.

- Fixed an issue where the save settings button isn't visible when creating or editing a feed.
- Fixed a display issue with some conditional logic feed settings.
- Fixed an issue where API calls are being made on all admin pages when checking for deprecated keys.

- Fixed an issue where the save settings button isn't visible when creating or editing a feed.