[zanata/zanata-platform] 817098: fix: storybook frontend/editor builds (#788)

[GitHub]

  Branch: refs/heads/master
  Home:   https://github.com/zanata/zanata-platform
  Commit: 817098fe4c1b5deb6516ce0948fbfe8b79b48709
      https://github.com/zanata/zanata-platform/commit/817098fe4c1b5deb6516ce0948fbfe8b79b48709
  Author: Earl Floden <efloden at redhat.com>
  Date:   2018-04-20 (Fri, 20 Apr 2018)

  Changed paths:
    M server/zanata-frontend/src/webpack.config.js

  Log Message:
  -----------
  fix: storybook frontend/editor builds (#788)