Replace qemu with qemu-system-i386

Even Debian removed backward compatibility symlink from qemu to
qemu-system-i386, so we have to replace the default configuration.
Use syslinux bootloader to create bootable ISO images

Previously, we used Grub 1, which was problematic, because it is not
available on modern distributions.
Fix the name of ISO image when it is booted under qemu
Support booting Linux with isolinux

isolinux configuration must be different for Linux and for Multiboot
kernels.
Add Debian packaging
Require LWP module at run time rather than at compile time

This module is only needed with --amt.
debian: Do not recommend servers that are started automatically

Replace the dependency with "Suggest".

Wheezy compatibility:
- Allow iproute package as an alternative to ipreoute2.
- Recommend qemy-system rather than qemu-system-x86.
Merge remote-tracking branch 'upstream/master'
AMT IDE-R implementation