gnucash maint: Add missing export (gnc:date-get-week)

[Geert Janssens]

Updated	 via  https://github.com/Gnucash/gnucash/commit/09054659 (commit)
	from  https://github.com/Gnucash/gnucash/commit/5ac84962 (commit)



commit 090546590d14a7111d921ab55e986da977bcf060
Author: christopherlam <christopher.lck at gmail.com>
Date:   Thu Sep 21 13:18:09 2017 +0800

    Add missing export (gnc:date-get-week)
    
    hit this bug during development



Summary of changes:
 src/app-utils/app-utils.scm | 1 +
 1 file changed, 1 insertion(+)