Allow preference sections to define CSS class names

Thomas Bruederli

2015-04-17 a3644638aaf0418598196a870204e0b632a4c8ad

 program/lib/Roundcube/html.php

@@ -153,7 +153,7 @@
            $attr = array('src' => $attr);
        }
        return self::tag('img', $attr + array('alt' => ''), null, array_merge(self::$common_attrib,
            array('src','alt','width','height','border','usemap','onclick')));
            array('src','alt','width','height','border','usemap','onclick','onerror')));
    }

    /**
@@ -218,7 +218,7 @@
            $attr = array('src' => $attr);
        }
        return self::tag('iframe', $attr, $cont, array_merge(self::$common_attrib,
            array('src','name','width','height','border','frameborder','onload')));
            array('src','name','width','height','border','frameborder','onload','allowfullscreen')));
    }

    /**