allow node v0.8.x - closes #1544
allow node v0.8.x - closes #1544

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