rollback semver version to avoid client vendor.js breakage - refs https://github.com/isaacs/node-semver/pull/49
rollback semver version to avoid client vendor.js breakage - refs https://github.com/isaacs/node-semver/pull/49

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