Update org.jenkins-ci.plugins version in POM
Fix error in configuration due to Jenkins API changes
Merge pull request #62 from os-cillation/master

Complete (tested) fix for the cron line validation
Use getProjects() instead of getAllProjects()

* Updated GitlabRepository.getProjectForPath() to use the non-admin /projects endpoint
  via GitlabAPI.getProjects(). This allows the use of a user with just the Reporter
  role.
* Updated the Jenkins version in pom.xml.