[avatars] handle text and file objects in save_avatar
[avatars] handle text and file objects in save_avatar

JackDanger/sentry,jean/sentry,jean/sentry,gencer/sentry,mvaled/sentry,JamesMura/sentry,ifduyue/sentry,jean/sentry,JamesMura/sentry,JamesMura/sentry,jean/sentry,BuildingLink/sentry,JackDanger/sentry,JamesMura/sentry,jean/sentry,mvaled/sentry,looker/sentry,beeftornado/sentry,looker/sentry,mvaled/sentry,BuildingLink/sentry,gencer/sentry,BuildingLink/sentry,mvaled/sentry,ifduyue/sentry,BuildingLink/sentry,gencer/sentry,looker/sentry,ifduyue/sentry,gencer/sentry,JackDanger/sentry,BuildingLink/sentry,beeftornado/sentry,looker/sentry,looker/sentry,ifduyue/sentry,JamesMura/sentry,gencer/sentry,mvaled/sentry,beeftornado/sentry,mvaled/sentry,ifduyue/sentry