Fix jenkins loop and zuul vcsrepo.

Change-Id: I83cf1303bb07e59b0c3305a2540f048638940372
Reviewed-on: https://review.openstack.org/10979
Reviewed-by: James E. Blair <corvus@inaugust.com>
Reviewed-by: Clark Boylan <clark.boylan@gmail.com>
Approved: Monty Taylor <mordred@inaugust.com>
Tested-by: Jenkins

modules/jenkins_master/manifests/init.pp

@@ -19,7 +19,6 @@ class jenkins_master($site, $serveradmin, $logo,
     release => "binary/",
     repos => "",
     require => Apt::Key['jenkins'],
-    notify => Class['Apt::Update']
   }
 
   file { '/etc/apache2/sites-available/jenkins':

modules/zuul/manifests/init.pp

@@ -16,6 +16,7 @@ class zuul (
   vcsrepo { "/opt/zuul":
     ensure => latest,
     provider => git,
+    revision => "master",
     source => "https://github.com/openstack-ci/zuul.git",
   }