FAI 5.7.4 released

[Thomas Lange]

The new FAI version 5.7.4 is available.
Support for installing notebooks is now improved.
New ISO images are available from [1]. The FAIme build service [2] now
also uses the newest FAI packages.

Changes:
- network-manager-gnome is now installed for class XFCE
- the network device config is now correct if NetworkManager is installed
- Booting does not hangs any more when installing a notebook without
  the ethernet being connected


[1] https://fai-project.org
[2] https://fai-project.org/FAIme

-- 
regards Thomas