ensure the MM map respects the minzoom/maxzoom set by the project settings - closes #1250
ensure the MM map respects the minzoom/maxzoom set by the project settings - closes #1250

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