new file for mail subscription 

git-svn-id: https://plugins.svn.wordpress.org/59sec-lite-contact-form-7-push-notifications-on-ios-and-android/trunk@1010416 b8457f37-d9ea-0310-8a92-e5e31aec5664
feedback file added

git-svn-id: https://plugins.svn.wordpress.org/59sec-lite-contact-form-7-push-notifications-on-ios-and-android/trunk@1010418 b8457f37-d9ea-0310-8a92-e5e31aec5664
cron add

git-svn-id: https://plugins.svn.wordpress.org/59sec-lite-contact-form-7-push-notifications-on-ios-and-android/trunk@1010419 b8457f37-d9ea-0310-8a92-e5e31aec5664