AJAX Yandex.Metrika

Add Yandex.Metrika counter. And add counter integration for AJAX sites.

Theme requirements:

• Theme must support footer (wp_footer). If not, you can change wp_register_script last parameter in php file: true => false.

For more information, please visit the Sergey S. Betke blog.

ToDo

The next version or later:

• commom option for script location (header / footer)
• links to yandex.metrika siter from wp-adminoptions
• support jQuery ajax events, not just my custom actions (hit.counter)