throw if stderr is returned from psql command
throw if stderr is returned from psql command

Zhao-Qi/tilemill,fxtentacle/tilemill,Teino1978-Corp/Teino1978-Corp-tilemill,florianf/tileoven,Zhao-Qi/tilemill,mbrukman/tilemill,tizzybec/tilemill,florianf/tileoven,tizzybec/tilemill,MappingKat/tilemill,nyimbi/tilemill,mbrukman/tilemill,tizzybec/tilemill,paulovieira/tilemill-clima,fxtentacle/tilemill,Zhao-Qi/tilemill,MappingKat/tilemill,tilemill-project/tilemill,fxtentacle/tilemill,MappingKat/tilemill,tilemill-project/tilemill,tizzybec/tilemill,Zhao-Qi/tilemill,MappingKat/tilemill,mbrukman/tilemill,nyimbi/tilemill,MappingKat/tilemill,paulovieira/tilemill-clima,Teino1978-Corp/Teino1978-Corp-tilemill,Zhao-Qi/tilemill,mbrukman/tilemill,paulovieira/tilemill-clima,paulovieira/tilemill-clima,Teino1978-Corp/Teino1978-Corp-tilemill,Teino1978-Corp/Teino1978-Corp-tilemill,fxtentacle/tilemill,tizzybec/tilemill,nyimbi/tilemill,fxtentacle/tilemill,nyimbi/tilemill,mbrukman/tilemill,florianf/tileoven,tilemill-project/tilemill,paulovieira/tilemill-clima,nyimbi/tilemill,Teino1978-Corp/Teino1978-Corp-tilemill