Fix speakers/schedule dialogs
Fix speakers/schedule dialogs

GDG-Ukraine/hoverboard,GDGKoreaCampus/homepage,GDGYangon/gdg-yangon-devfest-2015-website,gdg-eskisehir/wtm17,GDGKoreaCampus/homepage,GDGJKUAT/DevFestThikaRd2016,GDG-Ukraine/hoverboard,GDGYangon/gdg-yangon-devfest-2015-website,GDGJKUAT/DevFestThikaRd2016,gdg-eskisehir/wtm17,GDG-Nantes/devfest2017,GDG-Nantes/devfest2017