Removes LifterLMS 2.x compatibility, raising the minimum required LifterLMS version to 3.8.0
Adds a checkbox to enrollment, registration, and checkout forms allowing users to explicitly consent to receive emails
To accommodate GDPR compliance, sequences and tags will only be applied to users who have explicitly consented to receive emails.
Users who have previously consented to receive emails may opt out via a checkbox on the edit account tab of the student dashboard
New options have been added to allow customization of the consent and unsubscribe messages
Added Privacy Policy Suggested content linking to the ConvertKit Privacy Policy. Relies on WP 4.9.6.
In addition to an API Key, a Secret Key must also be obtained to API methods to unsubscribe users
Class LLMS_Settings_Integrations_ConvertKit has been replaced by LLMS_Integration_ConvertKit which is an integration child accessible programattically via LLMS()->integrations()->get( 'convertkit' )
Renamed plugin options to be consistent with other LifterLMS integration classes. Preexisting options will be renamed automatically upon plugin upgrade.
