gnucash maint: Add XSU to iso-4217-currencies

[Frank H.Ellenberger]

Updated	 via  https://github.com/Gnucash/gnucash/commit/efaeb99f (commit)
	from  https://github.com/Gnucash/gnucash/commit/9087418f (commit)



commit efaeb99ff11ed126f849cda544065ac115de0ad2
Author: fell <frank.h.ellenberger at gmail.com>
Date:   Wed Aug 10 14:22:48 2016 +0200

    Add XSU to iso-4217-currencies
    
    The future common currency of south america?



Summary of changes:
 src/engine/iso-4217-currencies.xml | 15 +++++++++++++++
 1 file changed, 15 insertions(+)