[syslinux] SYSLINUX 3.54-pre1 (bug fix release candidate)

[H. Peter Anvin]

I just uploaded SYSLINUX 3.54-pre1.

This is a release candidate, since it fixes a bug which I considers 
significant.  As it turns out, the problem with the graphical menu under 
Qemu/KVM (requiring -std-vga) was actually an invalid assumption that 
SYSLINUX was making, and didn't verify.  Fixing the assumption was easy 
enough to do, so I have fixed it.

Added is also a new set of menu layout commands, "menu disable", "menu 
indent" and "menu separator", which can be used to create a hierarchial 
menu look.  Thanks to an anonymous contributor for this code.

	-hpa


P.S. The assumption in question was that packed-pixel modes are densely 
packed, with one scan line immediately following another.  This is 
normally the case, but VESA doesn't require it, and the VESA BIOS 
included with Qemu doesn't set up its 640x480x24 mode this way -- and 
doesn't even have a 640x480x32 mode.  Why this is is somewhat confusing 
to me, since it generally doesn't make sense; it might be an attempt to 
mimic the real Cirrus Logic BIOS.  Either way, SYSLINUX should either 
verify the assumption (and reject unsuitable modes) or accept them; I 
chose the latter option since it was easy to do.