try | fallback for webkit stuff and remove libzip dep (fixes #1420
try | fallback for webkit stuff and remove libzip dep (fixes #1420

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