Puppet nodes are unresponsive after 30 minutes

This lowers the 'unresponsive_hours' variable to .5 in puppetboard
meaning if a node misses its report 3 times it becomes flagged in
the ui.

Change-Id: I5c86fe09ac7647278c63500593c084451b8fc202

modules/openstack_project/manifests/puppetboard.pp

@@ -12,6 +12,7 @@ class openstack_project::puppetboard(
   class { 'apache::mod::wsgi': }
 
   class { '::puppetboard':
+    unresponsive => '.5',
     enable_query => 'False', # This being a python false
   }