This update for salt fixes the following issues:

- Require /usr/bin/python instead of /bin/python for RHEL-family. (bsc#1173936)
- Don't install SuSEfirewall2 service files in Factory.
- Fix __mount_device wrapper to accept separate args and kwargs.
- Fix the registration of libvirt pool and nodedev events.
- Accept nested namespaces in spacewalk.api runner function. (bsc#1172211)
- info_installed works without status attr now. (bsc#1171461)

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