Update all copyright dates to 2012.

Turn:

 =item B<-a> | B<--all>

into:

 =item B<-a>

 =item B<--all>

This gives a more natural-looking manual page, as well as making it
easier to directly link to these sections.

This tool replaces virt-list-filesystems and virt-list-partitions with
a new tool written in C with a more uniform command line structure
and output.

This existing Perl tools are deprecated but remain indefinitely.

Sys::Guestfs::Lib is changed in two ways: firstly we take the format
string from libvirt and pass it to add_drive_opts.  Secondly we allow
an extra format =>  parameter to open_guest which allows the
format to be specified for disk images.

All the tools are changed to add an extra --format parameter allowing
the format to be specified for direct disk images.

Fix copyright years.
Fix URLs to point to new PRC site.
Make sure guestfish(1) and guestfs(3) manpages reference the
current list of tools.

This option lists out block devices separately:

 $ virt-list-partitions -lht /tmp/WindowsResized.img
 /dev/sda1 ntfs 100.0M
 /dev/sda2 ntfs 11.9G
 /dev/sda device 12.0G

Virt-resize is the main contribution here, a program which can
be used to expand and shrink partitions in disk images.

Virt-list-partitions is used as an ancillary tool for planning
resize operations.