*** UPDATED 12-FEB-2017 ***
(some further improvements)
(for version 1.0.0 ~ 1.1.x) I took the liberty to fix few things and rewrite admin side. First, form still did not work 100% in my setup (some keys were missing) and form data was blank [incomplete html]. Also, fixed security related part, as Aficionado noticed. Finally, translation strings should now work properly. I have to admit that I did not have time to test and update front side yet. Once all things get sorted this should definitively be posted in Market for user convenience and automatic upgrades in the future.
(for versions 1.2.x) follows original version as much as possible, but with many other changes & fixes, translations domains, removed admin side protection (completely wrong implementation by original author - can lock you out of your own website) etc...
Regards