Include node installs via nvm as edge case

[DavideDaniel]

The edge cases don't account for nvm installations of node. When globally installing modules in this case, it can lead to incorrect paths being collected and issues such as this:

/Users/{user}/.nvm/versions/node/v6.9.5/lib/node_modules/{pkg}/src/state did not exist, creating...
Successfully wrote file to /Users/{user}/.nvm/versions/node/v6.9.5/lib/node_modules/{pkg}/src/state/App/index.js