Added apache directives check agains regex blacklist in security settings.

Till Brehm

2014-08-25 614b23b18053c58c3f85db5ceaa982484175d276

 interface/web/sites/form/web_vhost_subdomain.tform.php

@@ -706,6 +706,13 @@
         'apache_directives' => array (
            'datatype' => 'TEXT',
            'formtype' => 'TEXT',
            'validators' => array (  0 => array(
                     'type' => 'CUSTOM',
                     'class' => 'validate_domain',
                     'function' => 'web_apache_directives',
                     'errmsg' => 'apache_directive_blockd_error'
                  ),
            ),
            'default' => '',
            'value'  => '',
            'width'  => '30',