Typeahead: nette validation problem when using hint

[rebendajirijr]

When typeahead hint is enabled, the duplicated input contains attributes of the original input (including data-nette-rules) so it breaks form validation. The followign code solves the problem:

$('.tt-hint').removeAttr('data-nette-rules');

IMHO, it could be mentioned in nextras.typeahead.init.js and save time others.

[hrach]

Could you create PR? Thanks!