fix popover padding on bootstrap theme
fix popover padding on bootstrap theme

fullcalendar/fullcalendar,laoneo/fullcalendar,laoneo/fullcalendar,arshaw/fullcalendar,pietervisser/fullcalendar,oleg-babintsev/fullcalendar,kleisauke/fullcalendar,oleg-babintsev/fullcalendar,fullcalendar/fullcalendar,fullcalendar/fullcalendar,arshaw/fullcalendar,kleisauke/fullcalendar,arshaw/fullcalendar,fullcalendar/fullcalendar,kleisauke/fullcalendar,laoneo/fullcalendar,kleisauke/fullcalendar,arshaw/fullcalendar,pietervisser/fullcalendar,pietervisser/fullcalendar,oleg-babintsev/fullcalendar