Html template to get form for mailchimp key
Html to call js and css files after grab mailchimp list successfully
After post the mailchimp key form, handle the key through mailchimp api's files
first file to initailize mailchimp plugin
handle all the request(add/get) on mailchimp plugin
Styles for template
Core  multiselect js file

I have tried to include wutalent jquery.multiselect.js file, but it conflicts with the other js code. So i have created own js file.
Update MaichimpConnect.php
Mailchimp API file
Configuration file for mailchimp which have api url and other thing
Delete MCAPI.class.php
Delete MaichimpConnect.php
Delete config.inc.php
Delete contactRecords.php
Delete keyForm.php
Delete jquery.multiselect.js
Delete mailchimp.css
Delete mailchimp.js
Delete mcapi_lists.php
first file to initailize mailchimp plugin