Log Message:
Add patch to fix directory reading problems:

  On NetBSD, force DIRBLKSIZ to 512, which matches the block size (and
  thus padding) for the representation of directories in UFS.
  coda_readdir will call the readdir from the container filesystem, and
  thus the padding of directories must match what the container
  filesystem would have done.

  Analysis and fix due to Brett Lymn.

  Not yet reported upstream; a better fix is desired.

Also:

  Set LICENSE.

  Add annotations to other patches about their upstream status, after
  pinging upstream.