Add the subentry "Options" in the "System" menu to expose some
options in the GUI which were not exposed before.
Added a new file for displaying and editing the node config options
which were not exposed through the GUI yet. Namely those are the
settings for wakeonlan and startall-on-boot-delay. Edited the
Makefile to include the newly created file.
Signed-off-by: Daniel Tschlatscher <d.tschlatscher@proxmox.com>
