added better RE for 'time' and 'week' types following latest HTML5 recommendations, revised and expanded comments on the remaining regular expressions, changed 'numRE' to 'numberRE' to keep naming consistency
added better RE for 'time' and 'week' types following latest HTML5 recommendations, revised and expanded comments on the remaining regular expressions, changed 'numRE' to 'numberRE' to keep naming consistency

ryanmitchell/nwxforms,dperini/nwxforms,dperini/nwxforms