[zanata/zanata-platform] 02aff7: Update Jenkinsfile, add unit test

[GitHub]

  Branch: refs/heads/add-Jenkinsfile
  Home:   https://github.com/zanata/zanata-platform
  Commit: 02aff7d2f8c30179492ecdd9160bedf1bb82a3bd
      https://github.com/zanata/zanata-platform/commit/02aff7d2f8c30179492ecdd9160bedf1bb82a3bd
  Author: Sean Flanigan <sflaniga at redhat.com>
  Date:   2017-04-03 (Mon, 03 Apr 2017)

  Changed paths:
    M Jenkinsfile
    M build-tools/pom.xml
    A build-tools/src/test/java/TestJenkinsfile.java

  Log Message:
  -----------
  Update Jenkinsfile, add unit test

- Avoid swallowing RejectedAccessException (allow script approve)
- Set currentBuild.result explicitly for successful builds
- Remove use of info.*
- Mark script globals with @Field