* Add lazy init logic to cb format. Override with --full-init.
* Make cbd check lazy init aware.
* Fix up a bunch of size calculation errors.
* Add pblk validity check in lbd_flush, lbd_read.
* cbd check now works (ish).
* Added full-check arg to cbd check, link with liblz4, libz.
* Added libcbd/util.c with goodies like verbose, ask_user_bool.
* Rework kernel side params, stats to separate from user space.
* Lock kernel stats when updating.
* Add lblk_used to stats.
... and probably some other forgotten things.
* New args to cbd format.
* HAVE_* -> COMPRESS_HAVE_*.
* Verify header params algorithm and compression.
* Move percpu alloc to lbdcache.
* Alloc percpu data in lbdcache_ctr, free in lbdcache_dtr.
* Fix command line handling.
* Move option/parameter validation to libcbd.
* Make resize argument the logical size.
* Make blkdev_pblk_* take dm_compress instead of block_device.
* Reinstate dm_compress.io_failed.
* Other misc stuff.