Fix some rudder handlers that changed since rudder 6

roles/rudder-node/handlers/main.yml

@@ -1,7 +1,7 @@
 ---
 # handler du role rudder-node
 - name: rudder-start
-  service: name=rudder state=restarted
+  service: name=rudder-agent state=restarted enabled=yes
 
 - name: agent-inventory
   command: rudder agent inventory

roles/rudder-node/tasks/debian.yml

@@ -31,7 +31,8 @@
 - name: install rudder agent -- debian
   apt: pkg=rudder-agent state=latest update_cache=yes
   when: ansible_distribution == 'Debian' or ansible_distribution == 'Ubuntu'
-  notify: agent-run
+  notify:
+    - agent-run
 
 - name: configure rudder server -- debian
   template:  src=policy_server.dat.tpl dest=/var/rudder/cfengine-community/policy_server.dat