Log the job name info when running test mode
Log the job name info when running test mode

When user runs 'jenkins-jobs test myjobs.yaml' only the xml
gets printed to screen but the xml doesn't contain any info
about the job name.  This logs the job name before showing
the xml snippet for each job.  Helps in debugging jobs when
using templates.

For example:

INFO:jenkins_jobs.builder:Job name:  foojob-py27-unit-master
<?xml version="1.0" encoding="utf-8"?>
<project>
  <actions/>
  <description>&lt;!-- Managed by Jenkins Job Builder --&gt;</description>
  <keepDependencies>false</keepDependencies>
  <blockBuildWhenDownstreamBuilding>false</blockBuildWhenDownstreamBuilding>
  <blockBuildWhenUpstreamBuilding>false</blockBuildWhenUpstreamBuilding>
  <concurrentBuild>false</concurrentBuild>
  <canRoam>true</canRoam>
  <properties/>
  <scm class="hudson.scm.NullSCM"/>
  <builders>
    <hudson.tasks.Shell>
      <command>git checkout master</command>
    </hudson.tasks.Shell>
  </builders>
  <publishers/>
  <buildWrappers/>
</project>
..
..

Change-Id: Ibce45debd5fd6aa1a400e1cc3762846415ca2a75

pyatil/jenkins-job-builder,sunyi00/jenkins-job-builder,vredchenko/jenkins-job-builder,wsoula/jenkins-job-builder,mjeanson/jenkins-job-builder,carroarmato0/jenkins-job-builder,electrical/jenkins-job-builder,joostvdg/jenkins-job-builder,cyberious/jenkins-job-builder,tya/jenkins-job-builder,puppetlabs/jenkins-job-builder,rsig/jenkins-job-builder,mohitsethi/jenkins-job-builder,lukas-bednar/jenkins-job-builder,puppetlabs/jenkins-job-builder,fuglu/jenkins-job-builder,sebbrandt87/jenkins-job-builder,joostvdg/jenkins-job-builder,mohitsethi/jenkins-job-builder,klmitch/jenkins-job-builder,jenshnielsen/jenkins-job-builder,dataxu/jenkins-job-builder,twc-openstack/jenkins-job-builder,partkyle/jenkins-job-builder,rsig/jenkins-job-builder,joostvdg/jenkins-job-builder,lukas-bednar/jenkins-job-builder,phinexus/jenkins-job-builder,gforcada/jenkins-job-builder,sebbrandt87/jenkins-job-builder,stanchan/jenkins-job-builder,madAndroid/jenkins-job-builder,sunyi00/jenkins-job-builder,tamac-io/jenkins-job-builder,onshape/jenkins-job-builder,partkyle/jenkins-job-builder,tya/jenkins-job-builder,maxandersen/jenkins-job-builder,mohitsethi/jenkins-job-builder,fuglu/jenkins-job-builder,electrical/jenkins-job-builder,wikimedia/integration-jenkins-job-builder,twc-openstack/jenkins-job-builder,CruGlobal/jenkins-job-builder,GoodgameStudios/jenkins-job-builder,rsig/jenkins-job-builder,phinexus/jenkins-job-builder,GoodgameStudios/jenkins-job-builder,theforeman/jenkins-job-builder,dataxu/jenkins-job-builder,carroarmato0/jenkins-job-builder,joostvdg/jenkins-job-builder,tamac-io/jenkins-job-builder,dataxu/jenkins-job-builder,kei-yamazaki/jenkins-job-builder,dataxu/jenkins-job-builder,kei-yamazaki/jenkins-job-builder,partkyle/jenkins-job-builder,twc-openstack/jenkins-job-builder,david-caro/jenkins-job-builder,theforeman/jenkins-job-builder,wikimedia/integration-jenkins-job-builder,klmitch/jenkins-job-builder,simzacks/jjb,OSSystems/jenkins-job-builder,vredchenko/jenkins-job-builder,rsig/jenkins-job-builder,grdryn/jenkins-job-builder,blaffoy/jenkins-job-builder,tya/jenkins-job-builder,OSSystems/jenkins-job-builder,gforcada/jenkins-job-builder,wikimedia/integration-jenkins-job-builder,kei-yamazaki/jenkins-job-builder,maxandersen/jenkins-job-builder,david-caro/jenkins-job-builder,OSSystems/jenkins-job-builder,fuglu/jenkins-job-builder,simzacks/jjb,onshape/jenkins-job-builder,madAndroid/jenkins-job-builder,gforcada/jenkins-job-builder,CruGlobal/jenkins-job-builder,gregsymons/jenkins-job-builder,mjeanson/jenkins-job-builder,twc-openstack/jenkins-job-builder,onshape/jenkins-job-builder,grdryn/jenkins-job-builder,carroarmato0/jenkins-job-builder,wsoula/jenkins-job-builder,wikimedia/integration-jenkins-job-builder,tamac-io/jenkins-job-builder,OSSystems/jenkins-job-builder,pyatil/jenkins-job-builder,blaffoy/jenkins-job-builder,lukas-bednar/jenkins-job-builder,linuxmaniac/jenkins-job-builder,cyberious/jenkins-job-builder,jenshnielsen/jenkins-job-builder,linuxmaniac/jenkins-job-builder,linuxmaniac/jenkins-job-builder,jenshnielsen/jenkins-job-builder,sunyi00/jenkins-job-builder,stanchan/jenkins-job-builder,linuxmaniac/jenkins-job-builder,wsoula/jenkins-job-builder,klmitch/jenkins-job-builder,phinexus/jenkins-job-builder,grdryn/jenkins-job-builder,wsoula/jenkins-job-builder,pyatil/jenkins-job-builder,electrical/jenkins-job-builder,david-caro/jenkins-job-builder,puppetlabs/jenkins-job-builder,stanchan/jenkins-job-builder,mjeanson/jenkins-job-builder,tamac-io/jenkins-job-builder,cyberious/jenkins-job-builder,phinexus/jenkins-job-builder,david-caro/jenkins-job-builder,pyatil/jenkins-job-builder,lukas-bednar/jenkins-job-builder,madAndroid/jenkins-job-builder,simzacks/jjb,theforeman/jenkins-job-builder,puppetlabs/jenkins-job-builder,gregsymons/jenkins-job-builder,vredchenko/jenkins-job-builder,onshape/jenkins-job-builder,phinexus/jenkins-job-builder,sebbrandt87/jenkins-job-builder,GoodgameStudios/jenkins-job-builder,wikimedia/integration-jenkins-job-builder,klmitch/jenkins-job-builder,gregsymons/jenkins-job-builder,simzacks/jjb,gforcada/jenkins-job-builder,CruGlobal/jenkins-job-builder,mjeanson/jenkins-job-builder,theforeman/jenkins-job-builder,gforcada/jenkins-job-builder