waiverdb role and playbook: add the global handlers in the playbook and fix a typo in the role

playbooks/hosts/waiverdb-dev.fedorainfracloud.org.yml

@@ -25,6 +25,9 @@
   - name: set hostname (required by some services, at least postfix need it)
     hostname: name="{{inventory_hostname}}"
 
+  handlers:
+  - include: "{{ handlers_path }}/restart_services.yml"
+
   roles:
   - fedmsg/base
   - nginx

roles/waiverdb/tasks/main.yml

@@ -49,6 +49,8 @@
     mode: 0660
     backup: yes
     force: yes
+  notify:
+  - restart waiverdb
 
 - name: install the nginx config
   template:
@@ -59,6 +61,4 @@
     mode: 0640
   notify:
   - restart nginx
- 
-  notify:
-  - restart waiverdb
+