Updated to xfsprogs-3.1.7.
Renamed device mapper to lvm2 and changed
the instructions to do a full lvm2 installation.
Moved lvm2 to the filesystems chapter.
git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@9190 af4574ff-66df-0310-9fd7-8a98e5e911e0