This patch extends the embedded image feature to allow multiple
embedded images instead of just one.

gPXE now always boots the first embedded image on startup instead of
doing the hardcoded DHCP boot (aka autoboot).

Based heavily upon a patch by Stefan Hajnoczi <stefanha@gmail.com>.

Some of the gPXE romprefix.S code attempts to write to the ROM image,
as allowed by the PCI spec.  We do gracefully handle the case of
read-only ROM images (for ISA ROMs and for normal bochs/qemu
operation), but it can be handy to be able to use bochs to debug the
code paths that depend on writable ROM images.

DUET (the EFI test environment) seems not to handle LF, so inhibit the
CR->LF conversion that the pty does for us by default.  This doesn't
affect operation of gPXE, which will happily accept either CR or LF.

Make sure parser doesn't choke on line with space at end.

Add a PHP script to act as a web interface for looking up error codes.

to match.

DHCPD and Windows RIS in particular).

mistakes.

checked-out copy.