Now only member categories that are used by active member data are listed in the...

Now only member categories that are used by active member data are listed in the category search pick-list.

Added a second parameter, $forActiveMembers,  to getListSortedParentChild() that returns an organized list of member categories.
Added a "WHERE" clause that is used to select categories when $forActiveMembers is true that limit the category list to those used in active members info records.
Added "true" as the $forActiveMembers parameter in the members "list.php" where getListSortedParentChild() is used to get categories for the filter picklist.