Redirection does not work with non-AJAX setup

Hi,

Unfortunately, since the upgrade the redirection does not work on all our sites anymore. We have a setup where wie do not use AJAX. I looked into your code and found, that the reason is on line 49 in file class-wpcf7r-submission.php, where the casing of the value you compare is invalid (Redirect vs redirect).

As there are no hooks where I can easily intercept this behaviour, please fix it as soon as possible!

Thank you.