Flattern all tags and dist tree for expat.
Correct a DoS issue when processing XML document with malformed
UTF-8 sequences.

Obtained from:	expat CVS (revisions 1.14 and 1.15)
Security:	CVE-2009-3560
Apply a vendor fix (rev 1.165): Don't update next pointer since it could
confuse tokenizer.

Obtained from:	expat CVS
Security:	CVE-2009-3720
Merge from upstream:

   - djm@cvs.openbsd.org 2012/04/11 13:34:17
     [ssh-keyscan.1 ssh-keyscan.c]
     now that sshd defaults to offering ECDSA keys, ssh-keyscan should also
     look for them by default; bz#1971

Approved by:	des
import unbound 1.4.17
Update vendor/opensolaris to last OpenSolaris state (13149:b23a4dab3d50)
Add ZFS bits to vendor/opensolaris

Obtained from:	https://hg.openindiana.org/upstream/oracle/onnv-gate
Move dtrace manual page to new vendor location
Import relevant vendor manual pages from illumos-gate
revision 13304:b54231762cfa

Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate
Update vendor/illumos/dist to pre libzfs_core state (dtrace and ctf part)
illumos-gate revision 13742:b6bbdd77139c

Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate
Update vendor/illumos/dist to pre libzfs_core state (zfs part)
illumos-gate revision 13742:b6bbdd77139c

Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate
Add zhack command missing from vendor import
illumos-gate revision 13742:b6bbdd77139c

Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate
Merge r238587 into 20120614 tag
Update vendor-sys/illumos/dist to illumos-gate 13752:9f5f6c52ba19
(zfs part)

Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate
Update vendor-sys/illumos/dist to illumos-gate 13752:9f5f6c52ba19
(non-zfs part)

Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate
Update vendor/illumos to illumos-gate 13753:2aba784c276b

Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate
Update vendor/illumos to illumos-gate 13754:7231b684c18b

References:
  https://www.illumos.org/issues/2978

Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate
Update vendor/illumos to illumos-gate 13758:23432da34147 (dtrace changes)

References:
  https://www.illumos.org/issues/3021
  https://www.illumos.org/issues/3022
  https://www.illumos.org/issues/3023
  https://www.illumos.org/issues/3024
  https://www.illumos.org/issues/3025
  https://www.illumos.org/issues/3026

Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate
Update vendor/illumos to illumos-gate 13773:00c2a08cf1bb

References:
  https://www.illumos.org/issues/2399 (zfs manual page)

Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate
Update vendor/illumos and vendor-sys/illumos to revision 13777:b1e53580146d

Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate
Add zpool-features.5 vendor manual page, revision 13753:2aba784c276b

Obtained from:	ssh://anonhg@hg.illumos.org/illumos-gate