Added description regarding package updates

Signed-off-by: Byron Sanchez <byron@hackbytes.com>
Fixed rsync provision module path and added it to provision pattern

Signed-off-by: Byron Sanchez <byron@hackbytes.com>
Added rbackup user to all nodes

Signed-off-by: Byron Sanchez <byron@hackbytes.com>
Added node management scripts

These scripts include:

  - Kernel and initramfs update script
  - Common library of shell functions

Signed-off-by: Byron Sanchez <byron@hackbytes.com>
Updated uids and gids for rbackup and deployer

Signed-off-by: Byron Sanchez <byron@hackbytes.com>
Added media management scripts

These scripts include:

  - mp3 validation to find and delete any corrupt mp3 files
  - playlist scanning to ensure m3u playlist items exist in a filesystem
  - list item deletion script

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