Updated DNS zone files

- Added new nodes for mysql, postgresql and a local mail server
- Renamed vega to kuma

Signed-off-by: Byron Sanchez <byron@hackbytes.com>
Moved local mail clients for checking emails to workstation

This is in preparation for a new mail client- nodes that push mail to a mail
server. The server then relays these emails out to the internet. Thus, the old
"mail client" for checking mail will only be for workstations.

Signed-off-by: Byron Sanchez <byron@hackbytes.com>
Added cronjobs for chkrootkit and rkhunter

Signed-off-by: Byron Sanchez <byron@hackbytes.com>
Added java package to workstation pattern

Signed-off-by: Byron Sanchez <byron@hackbytes.com>
Removed exim mail server from nitelite pattern

Signed-off-by: Byron Sanchez <byron@hackbytes.com>
Removed old mail reader files

These files have been moved to the workstation pattern. The mail pattern will
only contain send-only mail functionality.

Signed-off-by: Byron Sanchez <byron@hackbytes.com>