Move postgres backup cron task inside a bash flavored script.

roles/postgresql_server/tasks/main.yml

@@ -36,6 +36,9 @@
 - name: Ensure postgres has a place to backup to
   file: dest=/backups state=directory owner=postgres
 
+- name: Copy over backup scriplet
+  copy: src=backup-database dest=/usr/local/bin/backup-database mode=0755
+
 - name: Set up some cronjobs to backup databases as configured
   template: >
     src=cron-backup-database