Adding ethtool - to allows chaning WOL settings - does not add much more
dependencies compared to the core ones (network, dropbear, cryptsetup).
Refactor script for easier maintenance.
v1.0-1
Update README: dropbearconvert requires OpenSSH keys in PEM format.
Changed installation script to rely on variables, especially the list of
handled private key types, to that it automatically packages expected
private keys, instead of having to explicitely name/package them.
Julien Coloos