Update Grid/Source/Entity.php
Update Grid/Source/Entity.php

add public setGroupBy method
dnacreative/APYDataGridBundle,tamago-db/APYDataGridBundle,dnacreative/APYDataGridBundle,Abhoryo/APYDataGridBundle,qferr/APYDataGridBundle,rafacouto/APYDataGridBundle,delasallejean/APYDataGridBundle,unrealevil/GvnGridBundle,medinadato/APYDataGridBundle,b-durand/APYDataGridBundle,maximechagnolleau/APYDataGridBundle,mdzzohrabi/APYDataGridBundle,ibuildingsnl/APYDataGridBundle,mdzzohrabi/APYDataGridBundle,matthieuauger/APYDataGridBundle,delasallejean/APYDataGridBundle,LewisW/APYDataGridBundle,lashus/APYDataGridBundle,unrealevil/GvnGridBundle,ufik/APYDataGridBundle,lukaszsobieraj/APYDataGridBundle,andreia/APYDataGridBundle,qferr/APYDataGridBundle,tunght13488/APYDataGridBundle,tomcyr/APYDataGridBundle,pierredup/APYDataGridBundle,CiscoVE/APYDataGridBundle,darnel/APYDataGridBundle,rogamoore/APYDataGridBundle,CiscoVE/APYDataGridBundle,fastsupply/APYDataGridBundle,ibuildingsnl/APYDataGridBundle,fastsupply/APYDataGridBundle,APY/APYDataGridBundle,sixty-nine/APYDataGridBundle,lukaszsobieraj/APYDataGridBundle,Abhoryo/APYDataGridBundle,sygnisoft/APYDataGridBundle