This update for salt fixes the following issues:

- Fix virt.update with CPU defined.
- Fix virt issues and invalid input errors from 'salt.utils.data'. (bsc#1176480)
- Do not raise StreamClosedError traceback but only log it. (bsc#1175549)
- Various fixes to the mysql module to break out the handling of user.
- Take care of failed, skipped and unreachable tasks and propagate "retcode". (bsc#1173911, bsc#1173909)

This update was imported from the SUSE:SLE-15-SP1:Update update project.