sysutils/py-salt : update to 2016.3.4

While here, fix OpenSSL 1.1 compatibility

PR: 214786
PR: 214998
PR: 215051
Submitted by: Christer Edwards <christer.edwards@gmail.com> (maintainer)
Reported by: Melvyn Sopacua <m.r.sopacua@gmail.com> (214998)
Obtained from: https://github.com/saltstack/salt/pull/37772 (215051)