Update html.php

Dennis1993

2013-07-21 ec031a35f1147a42c82642d7821a93f58cf8f1a7

Update html.php

added required attribute to allowed list for input fields

 program/lib/Roundcube/html.php

@@ -358,7 +358,7 @@
    protected $tagname = 'input';
    protected $type = 'text';
    protected $allowed = array(
        'type','name','value','size','tabindex','autocapitalize',
        'type','name','value','size','tabindex','autocapitalize','required',
        'autocomplete','checked','onchange','onclick','disabled','readonly',
        'spellcheck','results','maxlength','src','multiple','accept',
        'placeholder','autofocus',