base: ensure cron is running & enabled

To allow for example logrotate to run every night …

Fixes bug#292

manifests/init.pp

@@ -65,4 +65,9 @@ This node is under the control of Puppet ${::puppetversion}.
     uid              => '0',
   }
 
+  service { 'cron':
+    ensure => running,
+    enable => true
+  }
+
 }

spec/classes/cloud_init_spec.rb

@@ -56,6 +56,11 @@ describe 'cloud' do
       )
     end
 
+    it { shoud contain_service('cron').with({
+      :ensure => 'running',
+      :enable => true
+    }) }
+
   end
 
   context 'on Debian platforms' do