[zanata/zanata-platform] 7def26: fix(ZNTA-2236) downgrade yarn

[GitHub]

  Branch: refs/heads/ZNTA-2236
  Home:   https://github.com/zanata/zanata-platform
  Commit: 7def268fc1c88119b26d9b46daf11516757b9e30
      https://github.com/zanata/zanata-platform/commit/7def268fc1c88119b26d9b46daf11516757b9e30
  Author: kgough <kgough at redhat.com>
  Date:   2017-10-12 (Thu, 12 Oct 2017)

  Changed paths:
    M server/zanata-frontend/pom.xml
    M server/zanata-frontend/src/frontend/.yarn-version
    M server/zanata-frontend/src/frontend/package.json
    M server/zanata-frontend/src/frontend/yarn.lock

  Log Message:
  -----------
  fix(ZNTA-2236) downgrade yarn