[zanata/zanata-platform] b31fb2: fix jest test

[GitHub]

  Branch: refs/heads/ZNTA-2093-tm-merge-ignore
  Home:   https://github.com/zanata/zanata-platform
  Commit: b31fb2541e794478bc3f03e89af3623832f21c2e
      https://github.com/zanata/zanata-platform/commit/b31fb2541e794478bc3f03e89af3623832f21c2e
  Author: Patrick Huang <pahuang at redhat.com>
  Date:   2017-09-05 (Tue, 05 Sep 2017)

  Changed paths:
    M server/zanata-frontend/src/frontend/app/components/DraggableVersionPanels/DraggableVersionPanels.test.js
    M server/zanata-frontend/src/frontend/app/containers/ProjectVersion/TMMergeModal.js
    M server/zanata-frontend/src/frontend/app/containers/ProjectVersion/TMMergeProjectSources.js
    M server/zanata-frontend/src/frontend/jest.config.js

  Log Message:
  -----------
  fix jest test