Build is broken: cannot find lodash modules

[jfirebaugh]

npm test produces lots of errors after a rm -rf node_modules && npm install. A typical error looks like:

  not ok Error: Cannot find module 'lodash/array/compact'
    at:
      line: 339
      column: 15
      file: module.js
      function: Function.Module._resolveFilename
    stack: >
      Object.<anonymous> (node_modules/babel-types/lib/index.js:40:27)

      Module.replacementCompile (node_modules/append-transform/index.js:53:13)

      Object.<anonymous> (node_modules/append-transform/index.js:57:4)

      Object.<anonymous>
      (node_modules/babel-traverse/lib/path/lib/virtual-types.js:7:19)

      Module.replacementCompile (node_modules/append-transform/index.js:53:13)
    code: MODULE_NOT_FOUND
    test: TAP
    message: "Error: Cannot find module 'lodash/array/compact'"

This reproduces in CI when building without a cache: https://circleci.com/gh/documentationjs/documentation/785.

Possibly some upstream package released a broken version.

[jfirebaugh]

Looks like a broken npm install actually. babel-core wants lodash 3 but npm is flattening it with a conflicting lodash 4.

[jfirebaugh]

npm/npm#11881

[jfirebaugh]

Fixed in 2c91f18 and 022e560.