Hooked in to new user signup and sent info to ListLuv API

Added a plugin to wpmu-plugins for hooking into the wpmu_new_user action to subscribe user to ComLuv updates newsletter. The user will automatically receive a confirmation request by ListLuv.

add_action('wpmu_new_user','cl_addsubscriber');
function cl_addsubscriber($user_id){
// get user email and name and ip
$userip=$_SERVER['REMOTE_ADDR'];
$user_info = get_userdata($user_id);
$useremail = $user_info->user_email;
$username = $user_info->user_login;
// send request to ListLuv api

Added additional message to signup last page to tell user to check their spam box for their activation email if they use gmail or hotmail.