• update to postfix-3.0-20150129
• fix build on FreeBSD 11 [1]
• use OPENSSL=yes instead including Mk/bsd.openssl.mk

• enable TLS as default option. Postfix uses a secure default configuration if TLS is not configured.

$ postconf -d | grep use_tls
lmtp_use_tls = no
postscreen_use_tls = $smtpd_use_tls
smtp_use_tls = no
smtpd_use_tls = no
tlsproxy_use_tls = $smtpd_use_tls

Changes:
Many fixes, improvements and cleanups. The list is really to long,
please read the original Changelog on your favor postfix mirror.

[1] Noted by sbruno@