[gentoo-dev] udhcp ebuild... please testy

New ebuild for a dhcp package. Recommended by Jon Nelson.

This is the right(tm) way of doing dhcp. dhcp events trigger scripts. The
current dhcpcd package is not doing that so that we have a braindead
implementation of dhcp right now:

Current situatiom:
If a dhcp server is not available then
the boot process hangs and then timeouts and proceeds without networking.
If I now fix the dhcp server then gentoo will not recognize that an IP is
now available. Reboot is necessary to activate dhcp again.

udhcp sits in the background and will configure networking when an IP
becomes available. No hangs on boot. Integration with boot up scripts not
yet done.