my.cnf was going to wrong location.

Got schooled on the difference between .my.cnf and my.cnf. This
should be correct now.

Change-Id: I5f23ae5dc9e824153fb9e85a11e09e422ed1e0f2

ansible/roles/stv3-db/handlers/main.yaml

@@ -0,0 +1,3 @@
+---
+ - name: restart_mysql 
+   action: service name=mysql state=restarted

ansible/roles/stv3-db/tasks/main.yaml

@@ -16,7 +16,9 @@
   ignore_errors: yes
 
 - name: copy .my.cnf file with root password credentials
-  template: src=my.cnf.j2 dest=/root/.my.cnf owner=root mode=0600
+  template: src=my.cnf.j2 dest=/etc/mysql/my.cnf owner=root mode=0600
+  notify: 
+    - restart_mysql
 
 - mysql_db: name=winchester state=present login_user=root login_password={{ root_db_password }}