Update parameterized_timer to make use of convert_mapping_to_xml()
Update parameterized_timer to make use of convert_mapping_to_xml()

Change-Id: I9d3ec2549aa40885a396ce3479f589b0e7d46f9f

wikimedia/integration-jenkins-job-builder,wsoula/jenkins-job-builder,wikimedia/integration-jenkins-job-builder,rsig/jenkins-job-builder,puppetlabs/jenkins-job-builder,wsoula/jenkins-job-builder,rsig/jenkins-job-builder,wikimedia/integration-jenkins-job-builder,gforcada/jenkins-job-builder,phinexus/jenkins-job-builder,OSSystems/jenkins-job-builder,puppetlabs/jenkins-job-builder,wsoula/jenkins-job-builder,puppetlabs/jenkins-job-builder,OSSystems/jenkins-job-builder,wikimedia/integration-jenkins-job-builder,OSSystems/jenkins-job-builder,phinexus/jenkins-job-builder,rsig/jenkins-job-builder,puppetlabs/jenkins-job-builder,phinexus/jenkins-job-builder,gforcada/jenkins-job-builder,OSSystems/jenkins-job-builder,gforcada/jenkins-job-builder,wsoula/jenkins-job-builder,wikimedia/integration-jenkins-job-builder,gforcada/jenkins-job-builder,phinexus/jenkins-job-builder,gforcada/jenkins-job-builder,rsig/jenkins-job-builder,phinexus/jenkins-job-builder