Add item to GROUP BY for new MySQL 5.7 default compatibility.

PHP message: PHP Fatal error:  Uncaught Exception: There was a problem with the database: Expression #5 of SELECT list is not in GROUP BY clause and contains nonaggregated column 'coral_organizations.OHP.parentOrganizationID' which is not functionally dependent on columns in GROUP BY clause; this is incompatible with sql_mode=only_full_group_by in /var/www/coral/organizations/admin/classes/common/DBService.php:39
Stack trace:
#0 /var/www/coral/organizations/admin/classes/common/DBService.php(71): DBService->checkForError()
#1 /var/www/coral/organizations/admin/classes/domain/Organization.php(550): DBService->processQuery('SELECT O.organi...', 'assoc')
#2 /var/www/coral/organizations/ajax_htmldata.php(895): Organization->search(Array, 'TRIM(LEADING 'T...', '')
#3 {main}
  thrown in /var/www/coral/organizations/admin/classes/common/DBService.php on line 39

organizations/admin/classes/domain/Organization.php

@@ -543,7 +543,7 @@ public function search($whereAdd, $orderBy, $limit){
 									LEFT JOIN ContactRoleProfile CRP ON C.contactID = CRP.contactID
 									LEFT JOIN ContactRole CR ON CR.contactRoleID = CRP.contactRoleID
 								" . $whereStatement . "
-								GROUP By O.organizationID
+								GROUP By O.organizationID, OHP.parentOrganizationID
 								ORDER BY " . $orderBy . $limitStatement;