ENYO-360 Let app decide to adjust RTL
enyo.updateI18NClasses() is called when locale is changed from external source.
When some devices like TV call setLocale, it is called.
So, we do not call this function manually.

However CalendarSample does not call enyo.update18NClasses().
I add RTL adjustment logic to CalendarSample.

Enyo-DCO-1.1-Signed-off-by: David Um david.um@lge.com