- LRU counters were broken, causing constant lock purge (433, 432)
 - the first part of the fixes for the ldlm_handle2lock race (419)
 - cleanup unused ll_inode_info field (442)
 - keep ioctl semaphore from serializing test_getattr/brw

- Fix unlink() of nonexistant file

- Considerable intent locking infrastructure, but it's not working perfectly
  yet.
- Updated documentation
- Many bugs.  Hold on.
- Test script changes to allow multiple mounts

I'll leave the branch around for a day or two in case we somehow missed
anything, then it will die.