* Added: Remove MailChimp settings, connections, form fields on uninstall
* Added: Remove user role settings related to MailChimp on uninstall
* Added: Remove user meta related to MailChimp on uninstall
* Added: Remove custom templates related to MailChimp on uninstall
* Added: Default value for the "Groups and Tags view" setting
* Added: Auto-fill MailChimp groups and tags in the registration form after failed submit
* Fixed: A contact update if the user email is changed
* Fixed: Deleting fields on post delete or trash if field type is empty
* Fixed: Error in Admin dashboard if MailChimp API key is incorrect
* Fixed: Group's interests removing in account notifications tab
