updated changelog for 0.6.1 notes & 0.6.0 correct date
updated changelog for 0.6.1 notes & 0.6.0 correct date

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