Fix for transfer module to properly support python 3 iteration
Fix for transfer module to properly support python 3 iteration

rtibbles/kolibri,DXCanas/kolibri,benjaoming/kolibri,learningequality/kolibri,benjaoming/kolibri,christianmemije/kolibri,jamalex/kolibri,jonboiser/kolibri,jayoshih/kolibri,indirectlylit/kolibri,learningequality/kolibri,lyw07/kolibri,jamalex/kolibri,indirectlylit/kolibri,indirectlylit/kolibri,mrpau/kolibri,rtibbles/kolibri,jayoshih/kolibri,lyw07/kolibri,mrpau/kolibri,mrpau/kolibri,aronasorman/kolibri,rtibbles/kolibri,jtamiace/kolibri,aronasorman/kolibri,jamalex/kolibri,MingDai/kolibri,66eli77/kolibri,aronasorman/kolibri,indirectlylit/kolibri,lyw07/kolibri,jayoshih/kolibri,jonboiser/kolibri,lyw07/kolibri,learningequality/kolibri,jonboiser/kolibri,mrpau/kolibri,christianmemije/kolibri,benjaoming/kolibri,jamalex/kolibri,jtamiace/kolibri,jonboiser/kolibri,christianmemije/kolibri,rtibbles/kolibri,jtamiace/kolibri,MingDai/kolibri,DXCanas/kolibri,66eli77/kolibri,MingDai/kolibri,DXCanas/kolibri,66eli77/kolibri,jayoshih/kolibri,66eli77/kolibri,learningequality/kolibri,aronasorman/kolibri,MingDai/kolibri,christianmemije/kolibri,DXCanas/kolibri,benjaoming/kolibri,jtamiace/kolibri