[ticket/11010] HTML5 input types for form fields

The proposal is to use the new input types for form fields(new HTML5 feature). The idea is to use types like email and url to the browser automatically validate the fields.

RFC & discussion: http://area51.phpbb.com/phpBB/viewtopic.php?f=108&t=43159

http://tracker.phpbb.com/browse/PHPBB3-11010

PHPBB3-11010