Appending forms to a post or page from the post/page edit screen should work properly in all cases. Closes #390.
Importing form from versions previous to 2.8 should no longer create a phantom email. Closes #339.
Removing the success message location setting since the option isn't currently functional.
Importing or duplicating a form that has submissions shouldn't cause the sequential numbers for the new form to start with the same number.
Updating to version 2.8.11.
Merge branch 'release/v2.8.11' into develop