Changes and upgrades in version 8.31

Changes and upgrades in version 8.31

fixed cms pagination inside control center.
updated autoresponder form editor to allow total control over form's style sheet and ability to include custom javascripts.
implemented feature to set configuration for cross domain cookie access.
fixed issue with optin forms gdpr protection feature not working properly on apple devices in safari browser.
implemented new theme feature for autoresponder subscription forms.
fixed issue about notification email when a user is manually added to an outgoing replicator.
updated subscription form cloning feature.