Upgrade to node 8, npm 5, yarn 1.3 (#54)
Upgrade to node 8, npm 5, yarn 1.3 (#54)

* Upgrade to node 8, npm 5, yarn 1.3

* fix yarn path

* fix yarn path

alexeagle/rules_nodejs,bazelbuild/rules_nodejs,bazelbuild/rules_nodejs,alexeagle/rules_nodejs,bazelbuild/rules_nodejs,bazelbuild/rules_nodejs,alexeagle/rules_nodejs,bazelbuild/rules_nodejs,alexeagle/rules_nodejs