Update package.json
Update package.json

Changed d3 version to 3.4 from 3.5 -- this is so phylonator and phylogram work properly


Former-commit-id: 3ffb055999c52e8755ebdf18ac2abba383e5265f
avoorhis/vamps-node.js,avoorhis/vamps-node.js,avoorhis/vamps-node.js,avoorhis/vamps-node.js,avoorhis/vamps-node.js,avoorhis/vamps-node.js