[zanata/zanata-platform] b31f19: Use GitHubCommitStatusSetter

[GitHub]

  Branch: refs/heads/ZNTA-2035-GitHubReporting
  Home:   https://github.com/zanata/zanata-platform
  Commit: b31f193d1db77a6ae7b43ee11d14e370b0a41f96
      https://github.com/zanata/zanata-platform/commit/b31f193d1db77a6ae7b43ee11d14e370b0a41f96
  Author: Ding-Yi Chen <dchen at redhat.com>
  Date:   2017-07-25 (Tue, 25 Jul 2017)

  Changed paths:
    M Jenkinsfile

  Log Message:
  -----------
  Use GitHubCommitStatusSetter