Bug Fix: No longer generating 'submit_url' for Contact Form 7 email because it seems to cause CF7 to think it is a spam submission and it drops it.

git-svn-id: https://plugins.svn.wordpress.org/contact-form-7-to-database-extension/trunk@996302 b8457f37-d9ea-0310-8a92-e5e31aec5664
Version: 2.8.15

git-svn-id: https://plugins.svn.wordpress.org/contact-form-7-to-database-extension/trunk@996303 b8457f37-d9ea-0310-8a92-e5e31aec5664
Stable tag: 2.8.15

git-svn-id: https://plugins.svn.wordpress.org/contact-form-7-to-database-extension/trunk@996305 b8457f37-d9ea-0310-8a92-e5e31aec5664