remove retina from changelog until we document all the steps toward this
remove retina from changelog until we document all the steps toward this

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