Updated goalWPsettings to see if there was already a declared Mailchimp class. Should fix the fatal error people reported with the double loading of Mailchimp_Folders.

git-svn-id: https://plugins.svn.wordpress.org/goalwp/trunk@984395 b8457f37-d9ea-0310-8a92-e5e31aec5664
Update version number and tested with WordPress 4.0.

git-svn-id: https://plugins.svn.wordpress.org/goalwp/trunk@984396 b8457f37-d9ea-0310-8a92-e5e31aec5664