[CentOS-docs] Added BackupPC Guide

[Max Hetrick]

S.Tindall wrote:

> 1) Add the wiki reference, which contains clarification of many points
> not addressed sufficiently in the documentation.
> 
> http://backuppc.wiki.sourceforge.net/

Done.

> 2) Also, a bug report contains corrective measures for the 64-bit
> installation.
> 
> http://bugs.centos.org/view.php?id=3175
> 
> 3) Web interface documentation link issues are addressed in another bug
> report:
> 
> http://bugs.centos.org/view.php?id=3190

> 5) A section addressing backing up Macs would be very helpful (to me).
> The official documentation is very lacking in that area.

Do you have edit rights on the wiki? If so, feel free to add to or edit. 
Adding a section on Windows and Macs isn't very CentOS specific, so I 
doubt I'll be adding that, but if others want it, and have the ability 
to edit, feel free to add to my work.

As I stated in the guide, it's primary content is for installing 
configuring BackupPC on CentOS, and backing up across rsync to other 
Linux servers.

Regards,
Max