message: adds configuration params for packaging repo
diff: @@ -19,6 +19,10 @@ properties([
  libindyBuildFinished = ["Ubuntu": false, "RedHat": false]
  libvcxBuildFinished = ["Ubuntu": false, "RedHat": false]
  +gitHubUserCredId = env.GITHUB_BOT_USER ?: 'sovbot-github'
  +sovrinPackagingRepo = env.SOVRIN_PACKAGING_REPO ?: 'https://github.com/sovrin-foundation/sovrin-packaging'
  +sovrinPackagingBranch = env.SOVRIN_PACKAGING_BRANCH ?: 'master'
  +
  try {
  testing()
  publishing()
  @@ -1342,8 +1346,7 @@ def buildTestEnv(file, env_name) {
  }
  def downloadPackagingUtils() {
  - //git branch: 'master', credentialsId: 'evernym-github-machine-user', url: 'https://github.com/evernym/sovrin-packaging'
  - git branch: 'master', credentialsId: 'sovbot-github', url: 'https://github.com/sovrin-foundation/sovrin-packaging'
  + git branch: sovrinPackagingBranch, credentialsId: gitHubUserCredId, url: sovrinPackagingRepo
  }
  def shell(command) {
  