counts the number of visit for a page
syntaxe :
{up site-visit} : increment the file log-path/alias_article.stat
{up site-visit=nom} : increment the file log-path/nom.stat
{up site-visit | info} : list the contents of all files .stat in log-path
{up site-visit | info=nom} : list the contents of all files action-xxx.stat in log-path
keywords : ##name## ##counter## ##date## ##language##