[zanata/zanata-scripts] 39a35d: Use constant branch name

[GitHub]

  Branch: refs/heads/ZNTA-1803-maven-release-pipeline
  Home:   https://github.com/zanata/zanata-scripts
  Commit: 39a35d0449ec9fc61368a5ca688a34d02225e973
      https://github.com/zanata/zanata-scripts/commit/39a35d0449ec9fc61368a5ca688a34d02225e973
  Author: Ding-Yi Chen <dchen at redhat.com>
  Date:   2017-11-20 (Mon, 20 Nov 2017)

  Changed paths:
    M jenkins/maven-Jenkinsfile

  Log Message:
  -----------
  Use constant branch name