Purge Customer Activity

	This routine will remove paid up and fully applied activity
	for this customer only, based on the date entered.

	Removed transaction record space is made available for reuse in
	the ARTRANS file.

	Once removed the activity is no longer available, except thru
	backup copies of this file.

	Note that you may purge activity similarly for all customers
	by using the 'File/File Maint/Transaction file Rebuild' from
	the A/R menu.