Added ability to specify multiple domains or mirrors for a single widget. The domains are listed through a comma when specifying their block of the Main parameters.
This function is useful when placing a widget resource-with automatic redirect to the mirror. For example, subdomain.blogspot.com redirected to subdomain.blogspot.ru (depending on region). For this situation, as the available domains you need to specify both mirrors: subdomain.blogspot.com,subdomain.blogspot.ru. If you specify only one domain, then users of your resource, got to the site via a mirrored domain will not be able to access the widget that is not active on this domain.