Cluster log daemon (clogd): use LVM bitops in place of ext2 bitops

Cluster log daemon (clogd): use LVM bitops in place of ext2 bitops

Eliminate dependency on outside library, since the same functionality
exists in our tree.

[It is important that the bitops work in the same way, as the bitmaps
must remain backwards compatible.  I haven't tested every architecture,
but the x86* archs work.  My test involved using the old ext2fsprogs
bitops, memcpy'ing the bits over to the LVM bitset array and ensuring
that only the bits set via the old methods were set.]