Sync with ports
Update to 6.3p1 distinfo

Changes: http://www.openssh.org/txt/release-6.3
Update to SCTP patchlevel 2329 from bugzilla [1]

Also strip [ab]/ prefix from patch

[1] https://bugzilla.mindrot.org/show_bug.cgi?id=2016#c6
Update LPK patch to 6.3

Changed an xfree() to a free().

Patch is completely untested for run-time and is still obsoleted by AuthorizedKeysCommands
Update X509 patch to 7.6 for 6.3p1
Update AES-CTR to latest upstream v14 which is now stable. Last was actually v13
Update HPN patch for 6.3
Update gsskex patch for 6.3, with some refactoring
Add dependency on ldns and enable VerifyHostKeyDNS/SSHFP by default