Add affiliate to Mailchimp Groups

Hi

Love this plugin and would love to have it updated to:

1. Add Affiliate sign up to Mailchimp GROUPS
2. Ability to see ALL Lists and ALL Groups

Here is a version of the plugin I had modified to enable viewing at least 100 Mailchimp lists (rather than just 10): https://www.dropbox.com/s/wf6kf01lpzgo5ip/affiliatewp-mailchimp-add-on-UPGRADED.zip?dl=0

Thanks for your work!