XFRM resource statistics v1.4 changes: Fixed downloads count.
XFRM resource statistics v1.3 changes: Added code to more accurately count number of resources.
XFRM resource statistics v1.2 changes: Added 'Total reviews' and 'Downloads last 24 hours' to the statistics widget.
XFRM resource statistics v1.1 changes: Added an Options page to allow excluding resource categories.
