update perseus renderer to 0.9.3
update perseus renderer to 0.9.3

lyw07/kolibri,jonboiser/kolibri,DXCanas/kolibri,mrpau/kolibri,jonboiser/kolibri,mrpau/kolibri,DXCanas/kolibri,mrpau/kolibri,benjaoming/kolibri,learningequality/kolibri,benjaoming/kolibri,mrpau/kolibri,benjaoming/kolibri,learningequality/kolibri,lyw07/kolibri,DXCanas/kolibri,benjaoming/kolibri,indirectlylit/kolibri,jonboiser/kolibri,lyw07/kolibri,jonboiser/kolibri,lyw07/kolibri,indirectlylit/kolibri,indirectlylit/kolibri,indirectlylit/kolibri,DXCanas/kolibri,learningequality/kolibri,learningequality/kolibri