Fix up our common playbook with cron handlers n stuff

roles/common/handlers/main.yml

@@ -0,0 +1,8 @@
+#!/usr/bin/ansible-playbook
+# vim:ft=ansible:
+---
+- name: restart cron
+  service:
+    name: cron
+    state: restarted
+  become: yes

roles/common/tasks/main.yml

@@ -19,9 +19,10 @@
       - python3-apt
       - vim
   become: yes
-- name: Set timezone to CST
+- name: Set timezone
   timezone:
     name: "America/Chicago"
+  notify: restart cron
 - name: Configure MOTD
   block:
   - name: Disable MOTD news