sysutils/py-salt: Fix upstream issues #33554, #33578, #33608 and #33529

The patch fixes some issues that are new with 2016.3.0

• https://github.com/saltstack/salt/issues/33529
• https://github.com/saltstack/salt/issues/33554
• https://github.com/saltstack/salt/issues/33578
• https://github.com/saltstack/salt/issues/33608

PR: 209829
Submitted by: ohauer, Andreas Montalban <amontalban@gmail.com>
Approved by: christer.edwards@gmail.com (maintainer timeout)