[gentoo-doc] Installation handbook improvements

[Maciej Grela <maciej.grela@gmail.com>]

Hi,

I've been recently trying to install Gentoo on a new machine and
noticed, that the x86/amd64
Installation Handbook could use a few updates to better reflect the
reality of today`s Linux.
I`d like to add the following things (most important first):

1. Replace the 'fdisk' with 'parted' in the partitioning section.
'cfdisk' could be also mentioned.
A notice about MSDOS and GPT disk labels could be added to help people
with large disk drives
which cannot be partitioned in the legacy way.

2. Write about configuring wpa_supplicant for basic PSK in the
"Preparing for Wireless Access"
section. No one uses WEP anymore.

3. Add ext4 to the list of supported filesystems.

4. In the "8.a. Filesystem Information" describe the ability to define
block devices using
UUID="" and LABEL="", this approach is much better than hardcoding device names.

5. Remove the chapter dealing with LILO. I don't think anyone uses
that bootloader anymore.

What do you think about these proposals ? Also, will posting bugs for
every change with
guidexml patches attached be the proper way to handle this ?

Best regards,
Maciej Grela