Only load crm-initial.conf when the file got changed

There is no point in loading it if it's the same as before, since we
already imported these settings.

We load it immediately because we know that corosync is running already,
and it's a critical file that we do not want to fail loading because of
a later crash in chef-client.

recipes/setup.rb

@@ -19,6 +19,7 @@
 #
 
 crm_conf = node[:pacemaker][:crm][:initial_config_file]
+
 template crm_conf do
   source "crm-initial.conf.erb"
   owner "root"
@@ -29,4 +30,6 @@ end
 execute "crm initial configuration" do
   user "root"
   command "crm configure load replace #{crm_conf}"
+  subscribes :run, resources(:template => crm_conf), :immediately
+  action :nothing
 end