Switch to 0700 for monitrc

```
NOTIFIED: [pgolm.monit | restart monit] ***************************************
failed: [10.00.33.60] => {"failed": true}
msg: monit: The control file '/etc/monit/monitrc' must have permissions no more than -rwx------ (0700); right now permissions are -rw-r--r-- (0644).
```

When provisioning in:
```
vagrant@vagrant-ubuntu-trusty-64:~$ monit -V
This is Monit version 5.6
Copyright (C) 2001-2013 Tildeslash Ltd. All Rights Reserved.
```