MFH: r416626 r419542 r420102 r422829

security/libressl: Update to version 2.3.6

Security: CVE-2016-2178
Sponsored by: BSDCan DevSummit

security/libressl: Update to 2.3.7

• Bugfix update [1]

Release notes:

• http://ftp.openbsd.org/pub/OpenBSD/LibreSSL/libressl-2.3.7-relnotes.txt

security/libressl: Update to 2.4.2

• Update to latest stable version 2.4.2
• Add UPDATING entry
• Remove OPENSSL_VERSION_NUMBER patch
• Change post-install targets to post-stage where possible
• Bump libcrypto version in version.mk

PR: 211701

security/libressl: Update to 2.4.3

• Update to 2.4.3
• Only affected by CVE-2016-6304 (high)

Security: CVE-2016-6304
Security: 43eaa656-80bc-11e6-bf52-b499baebfeaf

Approved by: ports-secteam (feld)