Automatically refresh the Stylesheet Version Number

More reference: http://www.sitepoint.com/parsing-xml-with-simplexml/ Given the XML: <Calendar> <Account> <Name>Sample Account Name</Name> <Client>Test User</Client> </Account> <CalendarDates> <CalendarDate> <Date>2014-03-01</Date> <Events> <Event> <Name>Event Number One</Name> <StartingAt>2014-03-01T09:30:00</StartingAt> <Categories>General</Categories> </Event>…