docker db image: use postgres 9.3 for +consistency
docker db image: use postgres 9.3 for +consistency
eHealthAfrica/nutsurv,johanneswilm/eha-nutsurv-django,johanneswilm/eha-nutsurv-django,johanneswilm/eha-nutsurv-django,eHealthAfrica/nutsurv,eHealthAfrica/nutsurv